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18874314917330 = 2523193425192947
BaseRepresentation
bin1000100101010100001001…
…10101100000010111010010
32110211100220110101100100212
410102222010311200113102
54433214044104323310
6104050423544044122
73655424055501245
oct422520465402722
973740813340325
1018874314917330
11601760879a2a4
122149b75a63642
13a6bac00869c2
1449374383725c
1522ae6e4da205
hex112a84d605d2

18874314917330 has 32 divisors (see below), whose sum is σ = 35634570585984. Its totient is φ = 7184060015616.

The previous prime is 18874314917323. The next prime is 18874314917333. The reversal of 18874314917330 is 3371941347881.

It is a self number, because there is not a number n which added to its sum of digits gives 18874314917330.

It is not an unprimeable number, because it can be changed into a prime (18874314917333) 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, 212552084 + ... + 212640863.

It is an arithmetic number, because the mean of its divisors is an integer number (1113580330812).

Almost surely, 218874314917330 is an apocalyptic number.

18874314917330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18874314917330 is a deficient number, since it is larger than the sum of its proper divisors (16760255668654).

18874314917330 is a wasteful number, since it uses less digits than its factorization.

18874314917330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425193170.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 18874314917330 in words is "eighteen trillion, eight hundred seventy-four billion, three hundred fourteen million, nine hundred seventeen thousand, three hundred thirty".

Divisors: 1 2 5 10 23 46 115 193 230 386 965 1930 4439 8878 22195 44390 425192947 850385894 2125964735 4251929470 9779437781 19558875562 48897188905 82062238771 97794377810 164124477542 410311193855 820622387710 1887431491733 3774862983466 9437157458665 18874314917330