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13497457129 = 136173233161
BaseRepresentation
bin11001001001000001…
…01101100111101001
31021211122211212100121
430210200231213221
5210120322112004
610111201203241
7655323330652
oct144440554751
937748755317
1013497457129
1157a6a65352
122748330521
131371476530
1492085c529
1553ee66854
hex32482d9e9

13497457129 has 16 divisors (see below), whose sum is σ = 14976461584. Its totient is φ = 12087014400.

The previous prime is 13497457109. The next prime is 13497457151. The reversal of 13497457129 is 92175479431.

It can be written as a sum of positive squares in 8 ways, for example, as 4189066729 + 9308390400 = 64723^2 + 96480^2 .

It is a cyclic number.

It is not a de Polignac number, because 13497457129 - 217 = 13497326057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13497457109) 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, 58692 + ... + 174469.

It is an arithmetic number, because the mean of its divisors is an integer number (936028849).

Almost surely, 213497457129 is an apocalyptic number.

It is an amenable number.

13497457129 is a deficient number, since it is larger than the sum of its proper divisors (1479004455).

13497457129 is a wasteful number, since it uses less digits than its factorization.

13497457129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233308.

The product of its digits is 1905120, while the sum is 52.

The spelling of 13497457129 in words is "thirteen billion, four hundred ninety-seven million, four hundred fifty-seven thousand, one hundred twenty-nine".

Divisors: 1 13 61 73 793 949 4453 57889 233161 3031093 14222821 17020753 184896673 221269789 1038265933 13497457129