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18872382341548 = 22231271316135813
BaseRepresentation
bin1000100101010000100011…
…01001010100000110101100
32110211011220202220022210001
410102220101221110012230
54433201114334412143
6104045504110154044
73655325141044441
oct422502151240654
973734822808701
1018872382341548
11601680691452a
1221497167b2924
13a6b872888938
144935dcccd9c8
1522ada99e514d
hex112a11a541ac

18872382341548 has 24 divisors (see below), whose sum is σ = 34465324184928. Its totient is φ = 9025211454336.

The previous prime is 18872382341521. The next prime is 18872382341567. The reversal of 18872382341548 is 84514328327881.

It is a self number, because there is not a number n which added to its sum of digits gives 18872382341548.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6898311 + ... + 9237502.

It is an arithmetic number, because the mean of its divisors is an integer number (1436055174372).

Almost surely, 218872382341548 is an apocalyptic number.

It is an amenable number.

18872382341548 is a deficient number, since it is larger than the sum of its proper divisors (15592941843380).

18872382341548 is a wasteful number, since it uses less digits than its factorization.

18872382341548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16148553 (or 16148551 counting only the distinct ones).

The product of its digits is 82575360, while the sum is 64.

The spelling of 18872382341548 in words is "eighteen trillion, eight hundred seventy-two billion, three hundred eighty-two million, three hundred forty-one thousand, five hundred forty-eight".

Divisors: 1 2 4 23 46 92 12713 25426 50852 292399 584798 1169596 16135813 32271626 64543252 371123699 742247398 1484494796 205134590669 410269181338 820538362676 4718095585387 9436191170774 18872382341548