Search a number
-
+
13137960 = 23351137269
BaseRepresentation
bin110010000111…
…100000101000
3220201110220010
4302013200220
511330403320
61145331520
7216446043
oct62074050
926643803
1013137960
117463820
124496ba0
13294cc54
141a5dc5a
151247ae0
hexc87828

13137960 has 128 divisors (see below), whose sum is σ = 44323200. Its totient is φ = 3087360.

The previous prime is 13137947. The next prime is 13137961. The reversal of 13137960 is 6973131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13137961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48706 + ... + 48974.

It is an arithmetic number, because the mean of its divisors is an integer number (346275).

Almost surely, 213137960 is an apocalyptic number.

13137960 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 13137960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22161600).

13137960 is an abundant number, since it is smaller than the sum of its proper divisors (31185240).

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

13137960 is a wasteful number, since it uses less digits than its factorization.

13137960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 13137960 is about 3624.6323951540. The cubic root of 13137960 is about 235.9623132391.

The spelling of 13137960 in words is "thirteen million, one hundred thirty-seven thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 37 40 44 55 60 66 74 88 110 111 120 132 148 165 185 220 222 264 269 296 330 370 407 440 444 538 555 660 740 807 814 888 1076 1110 1221 1320 1345 1480 1614 1628 2035 2152 2220 2442 2690 2959 3228 3256 4035 4070 4440 4884 5380 5918 6105 6456 8070 8140 8877 9768 9953 10760 11836 12210 14795 16140 16280 17754 19906 23672 24420 29590 29859 32280 35508 39812 44385 48840 49765 59180 59718 71016 79624 88770 99530 109483 118360 119436 149295 177540 199060 218966 238872 298590 328449 355080 398120 437932 547415 597180 656898 875864 1094830 1194360 1313796 1642245 2189660 2627592 3284490 4379320 6568980 13137960