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14749828639 = 721323155147
BaseRepresentation
bin11011011110010100…
…01000011000011111
31102001221101221002121
431233022020120133
5220201424004024
610435340003411
71031341321600
oct155712103037
942057357077
1014749828639
116289991627
122a37830567
131510a76670
149dcd01da7
155b4d998e4
hex36f28861f

14749828639 has 12 divisors (see below), whose sum is σ = 18477808104. Its totient is φ = 11670193584.

The previous prime is 14749828637. The next prime is 14749828651. The reversal of 14749828639 is 93682894741.

It is not a de Polignac number, because 14749828639 - 21 = 14749828637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14749828637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11576937 + ... + 11578210.

It is an arithmetic number, because the mean of its divisors is an integer number (1539817342).

Almost surely, 214749828639 is an apocalyptic number.

14749828639 is a deficient number, since it is larger than the sum of its proper divisors (3727979465).

14749828639 is a wasteful number, since it uses less digits than its factorization.

14749828639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23155174 (or 23155167 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 61.

The spelling of 14749828639 in words is "fourteen billion, seven hundred forty-nine million, eight hundred twenty-eight thousand, six hundred thirty-nine".

Divisors: 1 7 13 49 91 637 23155147 162086029 301016911 1134602203 2107118377 14749828639