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315077893 = 13193141149
BaseRepresentation
bin10010110001111…
…011010100000101
3210221212121121121
4102301323110011
51121124443033
651133113541
710544055304
oct2261732405
9727777547
10315077893
11151942759
12896288b1
1350379a30
142dbba43b
151c9db62d
hex12c7b505

315077893 has 16 divisors (see below), whose sum is σ = 368704000. Its totient is φ = 266639040.

The previous prime is 315077887. The next prime is 315077911. The reversal of 315077893 is 398770513.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-315077893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315077803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12918 + ... + 28231.

It is an arithmetic number, because the mean of its divisors is an integer number (23044000).

Almost surely, 2315077893 is an apocalyptic number.

It is an amenable number.

315077893 is a deficient number, since it is larger than the sum of its proper divisors (53626107).

315077893 is a wasteful number, since it uses less digits than its factorization.

315077893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41212.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 315077893 is about 17750.4336003378. The cubic root of 315077893 is about 680.4652906925.

The spelling of 315077893 in words is "three hundred fifteen million, seventy-seven thousand, eight hundred ninety-three".

Divisors: 1 13 19 31 247 403 589 7657 41149 534937 781831 1275619 10163803 16583047 24236761 315077893