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17923379396975 = 521355148859683
BaseRepresentation
bin1000001001101000111001…
…01010011000000101101111
32100110110101010102201211122
410010310130222120011233
54322124040111200400
6102041515315411155
73526631023106333
oct404643452300557
970413333381748
1017923379396975
115790298454138
1220158075b3abb
13a00223aa8950
1445d6d37997c3
15211365422685
hex104d1ca9816f

17923379396975 has 12 divisors (see below), whose sum is σ = 23934605102856. Its totient is φ = 13235726323680.

The previous prime is 17923379396969. The next prime is 17923379396981. The reversal of 17923379396975 is 57969397332971.

It is an interprime number because it is at equal distance from previous prime (17923379396969) and next prime (17923379396981).

It is not a de Polignac number, because 17923379396975 - 210 = 17923379395951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17923379396975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27574429517 + ... + 27574430166.

It is an arithmetic number, because the mean of its divisors is an integer number (1994550425238).

Almost surely, 217923379396975 is an apocalyptic number.

17923379396975 is a deficient number, since it is larger than the sum of its proper divisors (6011225705881).

17923379396975 is a wasteful number, since it uses less digits than its factorization.

17923379396975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55148859706 (or 55148859701 counting only the distinct ones).

The product of its digits is 3645685260, while the sum is 80.

The spelling of 17923379396975 in words is "seventeen trillion, nine hundred twenty-three billion, three hundred seventy-nine million, three hundred ninety-six thousand, nine hundred seventy-five".

Divisors: 1 5 13 25 65 325 55148859683 275744298415 716935175879 1378721492075 3584675879395 17923379396975