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131113229 = 1331325343
BaseRepresentation
bin1111101000010…
…10000100001101
3100010201020112112
413310022010031
5232031110404
621002113405
73151305212
oct764120415
9303636475
10131113229
1168012345
1237aab865
13212183c0
14135adb09
15b79d56e
hex7d0a10d

131113229 has 8 divisors (see below), whose sum is σ = 145754112. Its totient is φ = 117123120.

The previous prime is 131113223. The next prime is 131113259. The reversal of 131113229 is 922311131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131113229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131113223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162269 + ... + 163074.

It is an arithmetic number, because the mean of its divisors is an integer number (18219264).

Almost surely, 2131113229 is an apocalyptic number.

It is an amenable number.

131113229 is a deficient number, since it is larger than the sum of its proper divisors (14640883).

131113229 is a wasteful number, since it uses less digits than its factorization.

131113229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325387.

The product of its digits is 324, while the sum is 23.

The square root of 131113229 is about 11450.4685056988. The cubic root of 131113229 is about 508.0215919171.

The spelling of 131113229 in words is "one hundred thirty-one million, one hundred thirteen thousand, two hundred twenty-nine".

Divisors: 1 13 31 403 325343 4229459 10085633 131113229