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131350968 = 233272311201
BaseRepresentation
bin1111101010001…
…00000110111000
3100011011022122200
413311010012320
5232111212333
621011150200
73153315300
oct765040670
9304138580
10131350968
1168164a21
1237ba5360
132129c688
1413632600
15b7e8c13
hex7d441b8

131350968 has 144 divisors (see below), whose sum is σ = 427527360. Its totient is φ = 36288000.

The previous prime is 131350963. The next prime is 131350979. The reversal of 131350968 is 869053131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131350963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 108768 + ... + 109968.

It is an arithmetic number, because the mean of its divisors is an integer number (2968940).

Almost surely, 2131350968 is an apocalyptic number.

131350968 is a gapful number since it is divisible by the number (18) 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 131350968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213763680).

131350968 is an abundant number, since it is smaller than the sum of its proper divisors (296176392).

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

131350968 is a wasteful number, since it uses less digits than its factorization.

131350968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 131350968 is about 11460.8449950255. The cubic root of 131350968 is about 508.3284605702.

The spelling of 131350968 in words is "one hundred thirty-one million, three hundred fifty thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 31 36 42 49 56 62 63 72 84 93 98 124 126 147 168 186 196 217 248 252 279 294 372 392 434 441 504 558 588 651 744 868 882 1116 1176 1201 1302 1519 1736 1764 1953 2232 2402 2604 3038 3528 3603 3906 4557 4804 5208 6076 7206 7812 8407 9114 9608 10809 12152 13671 14412 15624 16814 18228 21618 25221 27342 28824 33628 36456 37231 43236 50442 54684 58849 67256 74462 75663 86472 100884 109368 111693 117698 148924 151326 176547 201768 223386 235396 260617 297848 302652 335079 353094 446772 470792 521234 529641 605304 670158 706188 781851 893544 1042468 1059282 1340316 1412376 1563702 1824319 2084936 2118564 2345553 2680632 3127404 3648638 4237128 4691106 5472957 6254808 7297276 9382212 10945914 14594552 16418871 18764424 21891828 32837742 43783656 65675484 131350968