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16315042 = 28157521
BaseRepresentation
bin111110001111…
…001010100010
31010200220000211
4332033022202
513134040132
61341404334
7255450502
oct76171242
933626024
1016315042
119233807
1255696aa
1334c3093
142249a02
151674147
hexf8f2a2

16315042 has 4 divisors (see below), whose sum is σ = 24472566. Its totient is φ = 8157520.

The previous prime is 16315037. The next prime is 16315051. The reversal of 16315042 is 24051361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16313521 + 1521 = 4039^2 + 39^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4078759 + ... + 4078762.

Almost surely, 216315042 is an apocalyptic number.

16315042 is a deficient number, since it is larger than the sum of its proper divisors (8157524).

16315042 is an equidigital number, since it uses as much as digits as its factorization.

16315042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157523.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16315042 is about 4039.1882847919. The cubic root of 16315042 is about 253.6273391000.

The spelling of 16315042 in words is "sixteen million, three hundred fifteen thousand, forty-two".

Divisors: 1 2 8157521 16315042