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13398608951 = 721343489161
BaseRepresentation
bin11000111101001111…
…01000110000110111
31021120202211212010222
430132213220300313
5204420020441301
610053310404555
7653013203600
oct143647506067
937522755128
1013398608951
115756190242
12271b20075b
131356b470a0
1491168ada7
1553643d31b
hex31e9e8c37

13398608951 has 24 divisors (see below), whose sum is σ = 17175456144. Its totient is φ = 10354538880.

The previous prime is 13398608893. The next prime is 13398608957. The reversal of 13398608951 is 15980689331.

It is a de Polignac number, because none of the positive numbers 2k-13398608951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13398608893 and 13398608902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13398608957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217190 + ... + 271971.

It is an arithmetic number, because the mean of its divisors is an integer number (715644006).

Almost surely, 213398608951 is an apocalyptic number.

13398608951 is a deficient number, since it is larger than the sum of its proper divisors (3776847193).

13398608951 is a wasteful number, since it uses less digits than its factorization.

13398608951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489231 (or 489224 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 13398608951 in words is "thirteen billion, three hundred ninety-eight million, six hundred eight thousand, nine hundred fifty-one".

Divisors: 1 7 13 43 49 91 301 559 637 2107 3913 27391 489161 3424127 6359093 21033923 23968889 44513651 147237461 273440999 311595557 1030662227 1914086993 13398608951