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18358082052 = 2232531604441
BaseRepresentation
bin10001000110001110…
…100001101000000100
31202101101222012020220
4101012032201220010
5300044132111202
612233353224340
71216634060052
oct210616415004
952341865226
1018358082052
117870727842
1236841020b0
13196748635b
14c621dd1d2
15726a3babc
hex4463a1a04

18358082052 has 24 divisors (see below), whose sum is σ = 42852520032. Its totient is φ = 6116932800.

The previous prime is 18358082051. The next prime is 18358082069. The reversal of 18358082052 is 25028085381.

It is a junction number, because it is equal to n+sod(n) for n = 18358081995 and 18358082013.

It is not an unprimeable number, because it can be changed into a prime (18358082051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271849 + ... + 332592.

It is an arithmetic number, because the mean of its divisors is an integer number (1785521668).

Almost surely, 218358082052 is an apocalyptic number.

18358082052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18358082052 is an abundant number, since it is smaller than the sum of its proper divisors (24494437980).

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

18358082052 is a wasteful number, since it uses less digits than its factorization.

18358082052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606979 (or 606977 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 18358082052 in words is "eighteen billion, three hundred fifty-eight million, eighty-two thousand, fifty-two".

Divisors: 1 2 3 4 6 12 2531 5062 7593 10124 15186 30372 604441 1208882 1813323 2417764 3626646 7253292 1529840171 3059680342 4589520513 6119360684 9179041026 18358082052