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18099750828 = 2237125472
BaseRepresentation
bin10000110110110101…
…000100011110101100
31201201101212121102210
4100312311010132230
5244032014011303
612152004250420
71210346225565
oct206665043654
951641777383
1018099750828
117748923765
1236116a0a10
131925ab7843
14c39b9516c
1570e00e203
hex436d447ac

18099750828 has 54 divisors (see below), whose sum is σ = 42914411148. Its totient is φ = 5937400560.

The previous prime is 18099750827. The next prime is 18099750833. The reversal of 18099750828 is 82805799081.

It is not an unprimeable number, because it can be changed into a prime (18099750827) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 33088851 + ... + 33089397.

Almost surely, 218099750828 is an apocalyptic number.

It is an amenable number.

18099750828 is an abundant number, since it is smaller than the sum of its proper divisors (24814660320).

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

18099750828 is an frugal number, since it uses more digits than its factorization.

18099750828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 57.

The spelling of 18099750828 in words is "eighteen billion, ninety-nine million, seven hundred fifty thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 547 852 1094 1641 2188 3282 5041 6564 10082 15123 20164 30246 38837 60492 77674 116511 155348 233022 299209 466044 598418 897627 1196836 1795254 2757427 3590508 5514854 8272281 11029708 16544562 21243839 33089124 42487678 63731517 84975356 127463034 254926068 1508312569 3016625138 4524937707 6033250276 9049875414 18099750828