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6157074085 = 51231414817
BaseRepresentation
bin1011011101111110…
…10111111010100101
3120220002121202210221
411232333113322211
5100102202332320
62454543244341
7305402160211
oct55677277245
916802552727
106157074085
11267a564988
121239ba96b1
137717a3806
14425a19941
152608133aa
hex16efd7ea5

6157074085 has 4 divisors (see below), whose sum is σ = 7388488908. Its totient is φ = 4925659264.

The previous prime is 6157074043. The next prime is 6157074137. The reversal of 6157074085 is 5804707516.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4182338241 + 1974735844 = 64671^2 + 44438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6157074085 is a prime.

It is a super-2 number, since 2×61570740852 = 75819122576357174450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615707404 + ... + 615707413.

It is an arithmetic number, because the mean of its divisors is an integer number (1847122227).

Almost surely, 26157074085 is an apocalyptic number.

It is an amenable number.

6157074085 is a deficient number, since it is larger than the sum of its proper divisors (1231414823).

6157074085 is a wasteful number, since it uses less digits than its factorization.

6157074085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231414822.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 6157074085 is about 78467.0254629293. The cubic root of 6157074085 is about 1832.8410075449.

The spelling of 6157074085 in words is "six billion, one hundred fifty-seven million, seventy-four thousand, eighty-five".

Divisors: 1 5 1231414817 6157074085