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131372160 = 2735531291
BaseRepresentation
bin1111101010010…
…01010010000000
3100011012101201120
413311021102000
5232112402120
621011432240
73153434133
oct765112200
9304171646
10131372160
1168179937
1237bb5680
13212a920a
141363a21a
15b800140
hex7d49480

131372160 has 128 divisors (see below), whose sum is σ = 426980160. Its totient is φ = 34344960.

The previous prime is 131372149. The next prime is 131372161. The reversal of 131372160 is 61273131.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 131372160.

It is not an unprimeable number, because it can be changed into a prime (131372161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101115 + ... + 102405.

Almost surely, 2131372160 is an apocalyptic number.

131372160 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 131372160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213490080).

131372160 is an abundant number, since it is smaller than the sum of its proper divisors (295608000).

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

131372160 is a wasteful number, since it uses less digits than its factorization.

131372160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1354 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 131372160 is about 11461.7694968971. The cubic root of 131372160 is about 508.3557967917.

The spelling of 131372160 in words is "one hundred thirty-one million, three hundred seventy-two thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 53 60 64 80 96 106 120 128 159 160 192 212 240 265 318 320 384 424 480 530 636 640 795 848 960 1060 1272 1291 1590 1696 1920 2120 2544 2582 3180 3392 3873 4240 5088 5164 6360 6455 6784 7746 8480 10176 10328 12720 12910 15492 16960 19365 20352 20656 25440 25820 30984 33920 38730 41312 50880 51640 61968 68423 77460 82624 101760 103280 123936 136846 154920 165248 205269 206560 247872 273692 309840 342115 410538 413120 495744 547384 619680 684230 821076 826240 1026345 1094768 1239360 1368460 1642152 2052690 2189536 2478720 2736920 3284304 4105380 4379072 5473840 6568608 8210760 8758144 10947680 13137216 16421520 21895360 26274432 32843040 43790720 65686080 131372160