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315055042 = 21031152791
BaseRepresentation
bin10010110001110…
…101101111000010
3210221211110021021
4102301311233002
51121123230132
651132420054
710543631551
oct2261655702
9727743237
10315055042
11151927575
128961762a
135036c503
142dbb1d98
151c9d4997
hex12c75bc2

315055042 has 8 divisors (see below), whose sum is σ = 473044032. Its totient is φ = 157373700.

The previous prime is 315055031. The next prime is 315055049. The reversal of 315055042 is 240550513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 315054998 and 315055016.

It is not an unprimeable number, because it can be changed into a prime (315055049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74334 + ... + 78457.

It is an arithmetic number, because the mean of its divisors is an integer number (59130504).

Almost surely, 2315055042 is an apocalyptic number.

315055042 is a deficient number, since it is larger than the sum of its proper divisors (157988990).

315055042 is a wasteful number, since it uses less digits than its factorization.

315055042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153824.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 315055042 is about 17749.7899142497. The cubic root of 315055042 is about 680.4488400638.

The spelling of 315055042 in words is "three hundred fifteen million, fifty-five thousand, forty-two".

Divisors: 1 2 1031 2062 152791 305582 157527521 315055042