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315104005391 = 7421508721019
BaseRepresentation
bin1001001010111011010…
…10011000110100001111
31010010100010210000000012
410211131222120310033
520130313111133031
6400431244223435
731523366565440
oct4453552306417
91103303700005
10315104005391
111116a8aa608a
125109b83ab7b
13239390915c6
14113730bb2c7
1582e36b9b2b
hex495da98d0f

315104005391 has 16 divisors (see below), whose sum is σ = 361062389760. Its totient is φ = 269381820960.

The previous prime is 315104005361. The next prime is 315104005399. The reversal of 315104005391 is 193500401513.

It is a de Polignac number, because none of the positive numbers 2k-315104005391 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 (315104005399) 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, 14980880 + ... + 15001898.

It is an arithmetic number, because the mean of its divisors is an integer number (22566399360).

Almost surely, 2315104005391 is an apocalyptic number.

315104005391 is a deficient number, since it is larger than the sum of its proper divisors (45958384369).

315104005391 is a wasteful number, since it uses less digits than its factorization.

315104005391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26534.

The product of its (nonzero) digits is 8100, while the sum is 32.

The spelling of 315104005391 in words is "three hundred fifteen billion, one hundred four million, five thousand, three hundred ninety-one".

Divisors: 1 7 421 2947 5087 21019 35609 147133 2141627 8848999 14991389 61942993 106923653 748465571 45014857913 315104005391