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13136680 = 23523109131
BaseRepresentation
bin110010000111…
…001100101000
3220201102010201
4302013030220
511330333210
61145321544
7216442234
oct62071450
926642121
1013136680
117462867
1244962b4
13294c4ab
141a5d5c4
15124753a
hexc87328

13136680 has 64 divisors (see below), whose sum is σ = 31363200. Its totient is φ = 4942080.

The previous prime is 13136677. The next prime is 13136689. The reversal of 13136680 is 8663131.

It is a super-2 number, since 2×131366802 = 345144722844800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13136689) 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, 100215 + ... + 100345.

It is an arithmetic number, because the mean of its divisors is an integer number (490050).

Almost surely, 213136680 is an apocalyptic number.

13136680 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 13136680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15681600).

13136680 is an abundant number, since it is smaller than the sum of its proper divisors (18226520).

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

13136680 is a wasteful number, since it uses less digits than its factorization.

13136680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13136680 is about 3624.4558212234. The cubic root of 13136680 is about 235.9546499090.

The spelling of 13136680 in words is "thirteen million, one hundred thirty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 109 115 131 184 218 230 262 436 460 524 545 655 872 920 1048 1090 1310 2180 2507 2620 3013 4360 5014 5240 6026 10028 12052 12535 14279 15065 20056 24104 25070 28558 30130 50140 57116 60260 71395 100280 114232 120520 142790 285580 328417 571160 656834 1313668 1642085 2627336 3284170 6568340 13136680