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18429048258 = 238337006121
BaseRepresentation
bin10001001010011101…
…001111010111000010
31202120100111122120220
4101022131033113002
5300220314021013
612244410243510
71221455216445
oct211235172702
952510448526
1018429048258
1178a77987a5
1236a3a26596
1319790a28aa
14c6b7d365c
1572cda8b23
hex44a74f5c2

18429048258 has 16 divisors (see below), whose sum is σ = 37302170976. Its totient is φ = 6069003680.

The previous prime is 18429048251. The next prime is 18429048293. The reversal of 18429048258 is 85284092481.

It is a self number, because there is not a number n which added to its sum of digits gives 18429048258.

It is not an unprimeable number, because it can be changed into a prime (18429048251) 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 7 ways as a sum of consecutive naturals, for example, 18502563 + ... + 18503558.

It is an arithmetic number, because the mean of its divisors is an integer number (2331385686).

Almost surely, 218429048258 is an apocalyptic number.

18429048258 is an abundant number, since it is smaller than the sum of its proper divisors (18873122718).

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

18429048258 is a wasteful number, since it uses less digits than its factorization.

18429048258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37006209.

The product of its (nonzero) digits is 1474560, while the sum is 51.

The spelling of 18429048258 in words is "eighteen billion, four hundred twenty-nine million, forty-eight thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 83 166 249 498 37006121 74012242 111018363 222036726 3071508043 6143016086 9214524129 18429048258