62 (number)
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62 is a natural number that follows 61 and precedes 63. It is an even number, since it is divisible by 2 with no remainder. It is also a composite number, meaning it has divisors other than 1 and itself.
The complete divisors of 62 are 1, 2, 31, and 62. In factored form, 62 equals 2 × 31, the product of two prime numbers. For this reason, 62 is classified as a semiprime—a number formed by the multiplication of two primes.
Mathematical properties
The sum of all divisors of 62 is 96 (1 + 2 + 31 + 62). If 62 itself is excluded, the sum of its proper divisors is 34, which is less than 62. For this reason, 62 is a deficient number—not a perfect number like 6 or 28.
Euler's totient function, φ(62), equals 30. It is calculated as follows: φ(2 × 31) = φ(2) × φ(31) = 1 × 30. This means that 30 numbers less than 62 are coprime with 62—that is, they share only 1 as a common factor.
Notation systems
In binary (base 2), 62 is written as 111110. In Roman numerals, it is written as LXII. In hexadecimal, it is 3E. In the Hindu-Arabic numeral system used worldwide, it is 62.
In Somali, 62 is called 'lixdan iyo laba' (sixty and two). The Somali counting system is based on tens; accordingly, the name is composed of the tens element (sixty) and the ones element (two).