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13430131 = 1113194943
BaseRepresentation
bin110011001110…
…110101110011
3221021022200021
4303032311303
511414231011
61155504311
7222103621
oct63166563
927238607
1013430131
117643290
1245b8097
132a22c30
141ad8511
1512a4471
hexcced73

13430131 has 16 divisors (see below), whose sum is σ = 16611840. Its totient is φ = 10674720.

The previous prime is 13430129. The next prime is 13430141. The reversal of 13430131 is 13103431.

It is a cyclic number.

It is not a de Polignac number, because 13430131 - 21 = 13430129 is a prime.

It is a super-2 number, since 2×134301312 = 360736837354322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13430141) 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, 246 + ... + 5188.

It is an arithmetic number, because the mean of its divisors is an integer number (1038240).

Almost surely, 213430131 is an apocalyptic number.

13430131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13430131 is a deficient number, since it is larger than the sum of its proper divisors (3181709).

13430131 is a wasteful number, since it uses less digits than its factorization.

13430131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13430131 is about 3664.7143135584. The cubic root of 13430131 is about 237.6986688548.

Adding to 13430131 its reverse (13103431), we get a palindrome (26533562).

The spelling of 13430131 in words is "thirteen million, four hundred thirty thousand, one hundred thirty-one".

Divisors: 1 11 13 19 143 209 247 2717 4943 54373 64259 93917 706849 1033087 1220921 13430131