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131010152 = 237132109127
BaseRepresentation
bin1111100111100…
…00111001101000
3100010112000010212
413303300321220
5232014311102
621000000252
73150365540
oct763607150
9303460125
10131010152
1167a51959
1237a60088
13211b0500
1413584320
15b77cc52
hex7cf0e68

131010152 has 96 divisors (see below), whose sum is σ = 309196800. Its totient is φ = 50948352.

The previous prime is 131010133. The next prime is 131010157. The reversal of 131010152 is 251010131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (131010157) 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, 1031513 + ... + 1031639.

It is an arithmetic number, because the mean of its divisors is an integer number (3220800).

Almost surely, 2131010152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131010152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154598400).

131010152 is an abundant number, since it is smaller than the sum of its proper divisors (178186648).

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

131010152 is a wasteful number, since it uses less digits than its factorization.

131010152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 131010152 is about 11445.9666258469. The cubic root of 131010152 is about 507.8884269403. Note that the first 3 decimals are identical.

Adding to 131010152 its reverse (251010131), we get a palindrome (382020283).

The spelling of 131010152 in words is "one hundred thirty-one million, ten thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 109 127 169 182 218 254 338 364 436 508 676 728 763 872 889 1016 1183 1352 1417 1526 1651 1778 2366 2834 3052 3302 3556 4732 5668 6104 6604 7112 9464 9919 11336 11557 13208 13843 18421 19838 21463 23114 27686 36842 39676 42926 46228 55372 73684 79352 85852 92456 96901 110744 128947 147368 150241 171704 179959 193802 257894 300482 359918 387604 515788 600964 719836 775208 1031576 1201928 1259713 1439672 2339467 2519426 4678934 5038852 9357868 10077704 16376269 18715736 32752538 65505076 131010152