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315924042 = 23719937799
BaseRepresentation
bin10010110101001…
…001111001001010
3211000110121022110
4102311021321022
51121334032132
651203203150
710554211230
oct2265117112
9730417273
10315924042
11152370455
12899764b6
13505b4c05
142dd5a950
151cb071cc
hex12d49e4a

315924042 has 32 divisors (see below), whose sum is σ = 725760000. Its totient is φ = 89808048.

The previous prime is 315924023. The next prime is 315924047. The reversal of 315924042 is 240429513.

It is not an unprimeable number, because it can be changed into a prime (315924047) 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, 10542 + ... + 27257.

It is an arithmetic number, because the mean of its divisors is an integer number (22680000).

Almost surely, 2315924042 is an apocalyptic number.

315924042 is an abundant number, since it is smaller than the sum of its proper divisors (409835958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315924042 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (315924041) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (38010).

315924042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38010.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 315924042 is about 17774.2522205577. The cubic root of 315924042 is about 681.0738813369.

The spelling of 315924042 in words is "three hundred fifteen million, nine hundred twenty-four thousand, forty-two".

Divisors: 1 2 3 6 7 14 21 42 199 398 597 1194 1393 2786 4179 8358 37799 75598 113397 226794 264593 529186 793779 1587558 7522001 15044002 22566003 45132006 52654007 105308014 157962021 315924042