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13879296765 = 325308428817
BaseRepresentation
bin11001110110100010…
…10100001011111101
31022211021100022212100
430323101110023331
5211411044444030
610213121255313
71000641035025
oct147321241375
938737308770
1013879296765
1159825570a4
122834194539
1314025c9b49
14959456a85
1556373e360
hex33b4542fd

13879296765 has 12 divisors (see below), whose sum is σ = 24057447804. Its totient is φ = 7402291584.

The previous prime is 13879296733. The next prime is 13879296841. The reversal of 13879296765 is 56769297831.

It can be written as a sum of positive squares in 2 ways, for example, as 3237723801 + 10641572964 = 56901^2 + 103158^2 .

It is not a de Polignac number, because 13879296765 - 25 = 13879296733 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 154214364 + ... + 154214453.

It is an arithmetic number, because the mean of its divisors is an integer number (2004787317).

Almost surely, 213879296765 is an apocalyptic number.

13879296765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13879296765 is a deficient number, since it is larger than the sum of its proper divisors (10178151039).

13879296765 is a wasteful number, since it uses less digits than its factorization.

13879296765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308428828 (or 308428825 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 13879296765 in words is "thirteen billion, eight hundred seventy-nine million, two hundred ninety-six thousand, seven hundred sixty-five".

Divisors: 1 3 5 9 15 45 308428817 925286451 1542144085 2775859353 4626432255 13879296765