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13157460 = 22325671091
BaseRepresentation
bin110010001100…
…010001010100
3220202110122100
4302030101110
511332014320
61150002100
7216556641
oct62142124
926673570
1013157460
117477438
1244a6330
132958aa4
141a66dc8
15124d790
hexc8c454

13157460 has 72 divisors (see below), whose sum is σ = 40543776. Its totient is φ = 3453120.

The previous prime is 13157453. The next prime is 13157467. The reversal of 13157460 is 6475131.

13157460 is a `hidden beast` number, since 1 + 31 + 574 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (13157453) and next prime (13157467).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11515 + ... + 12605.

It is an arithmetic number, because the mean of its divisors is an integer number (563108).

Almost surely, 213157460 is an apocalyptic number.

13157460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13157460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20271888).

13157460 is an abundant number, since it is smaller than the sum of its proper divisors (27386316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13157460 is a wasteful number, since it uses less digits than its factorization.

13157460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 13157460 is about 3627.3213257168. The cubic root of 13157460 is about 236.0789977804.

The spelling of 13157460 in words is "thirteen million, one hundred fifty-seven thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 67 90 134 180 201 268 335 402 603 670 804 1005 1091 1206 1340 2010 2182 2412 3015 3273 4020 4364 5455 6030 6546 9819 10910 12060 13092 16365 19638 21820 32730 39276 49095 65460 73097 98190 146194 196380 219291 292388 365485 438582 657873 730970 877164 1096455 1315746 1461940 2192910 2631492 3289365 4385820 6578730 13157460