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18102913054434 = 2321383932082847
BaseRepresentation
bin1000001110110111010011…
…01100111011011011100010
32101002121210010200111101100
410013123221230323123202
54333044231220220214
6102300210301015230
73545615030033235
oct407335154733342
971077703614340
1018102913054434
11584a44752825a
122044570b54516
13a14135c20a60
1446828568141c
15215d71c10309
hex1076e9b3b6e2

18102913054434 has 48 divisors (see below), whose sum is σ = 42749047740672. Its totient is φ = 5503017122784.

The previous prime is 18102913054411. The next prime is 18102913054441. The reversal of 18102913054434 is 43445031920181.

18102913054434 is a `hidden beast` number, since 1 + 8 + 10 + 2 + 91 + 3 + 0 + 544 + 3 + 4 = 666.

It is a super-2 number, since 2×181029130544342 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18102913054434.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466022002 + ... + 466060845.

It is an arithmetic number, because the mean of its divisors is an integer number (890605161264).

Almost surely, 218102913054434 is an apocalyptic number.

18102913054434 is an abundant number, since it is smaller than the sum of its proper divisors (24646134686238).

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

18102913054434 is a wasteful number, since it uses less digits than its factorization.

18102913054434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932082951 (or 932082948 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 18102913054434 in words is "eighteen trillion, one hundred two billion, nine hundred thirteen million, fifty-four thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 83 117 166 234 249 498 747 1079 1494 2158 3237 6474 9711 19422 932082847 1864165694 2796248541 5592497082 8388745623 12117077011 16777491246 24234154022 36351231033 72702462066 77362876301 109053693099 154725752602 218107386198 232088628903 464177257806 696265886709 1005717391913 1392531773418 2011434783826 3017152175739 6034304351478 9051456527217 18102913054434