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14893379881 = 194722773471
BaseRepresentation
bin11011101111011011…
…01111000100101001
31102102221112002101021
431313231233010221
5221000201124011
610501504452441
71035033432412
oct156755570451
942387462337
1014893379881
116352a19816
122a7791a121
131534728223
14a13dcc809
155c27a3471
hex377b6f129

14893379881 has 16 divisors (see below), whose sum is σ = 16081551360. Its totient is φ = 13748294160.

The previous prime is 14893379857. The next prime is 14893379887. The reversal of 14893379881 is 18897339841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14893379881 is a prime.

It is a super-2 number, since 2×148933798812 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14893379887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165976 + ... + 239446.

It is an arithmetic number, because the mean of its divisors is an integer number (1005096960).

Almost surely, 214893379881 is an apocalyptic number.

It is an amenable number.

14893379881 is a deficient number, since it is larger than the sum of its proper divisors (1188171479).

14893379881 is a wasteful number, since it uses less digits than its factorization.

14893379881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73764.

The product of its digits is 10450944, while the sum is 61.

The spelling of 14893379881 in words is "fourteen billion, eight hundred ninety-three million, three hundred seventy-nine thousand, eight hundred eighty-one".

Divisors: 1 19 47 227 893 4313 10669 73471 202711 1395949 3453137 16677917 65609603 316880423 783862099 14893379881