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72525960 = 233251315497
BaseRepresentation
bin1000101001010…
…10100010001000
312001110200220200
410110222202020
5122031312320
611110252200
71540313643
oct424524210
9161420820
1072525960
1137a36911
1220357060
1312044490
1498bca5a
156579290
hex452a888

72525960 has 96 divisors (see below), whose sum is σ = 253857240. Its totient is φ = 17851392.

The previous prime is 72525931. The next prime is 72525989. The reversal of 72525960 is 6952527.

72525960 is a `hidden beast` number, since 72 + 525 + 9 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (72525931) and next prime (72525989).

It can be written as a sum of positive squares in 4 ways, for example, as 63776196 + 8749764 = 7986^2 + 2958^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3069 + ... + 12428.

Almost surely, 272525960 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 72525960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126928620).

72525960 is an abundant number, since it is smaller than the sum of its proper divisors (181331280).

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

72525960 is a wasteful number, since it uses less digits than its factorization.

72525960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15527 (or 15520 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 72525960 is about 8516.2174702153. The cubic root of 72525960 is about 417.0273087372.

The spelling of 72525960 in words is "seventy-two million, five hundred twenty-five thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 30 36 39 40 45 52 60 65 72 78 90 104 117 120 130 156 180 195 234 260 312 360 390 468 520 585 780 936 1170 1560 2340 4680 15497 30994 46491 61988 77485 92982 123976 139473 154970 185964 201461 232455 278946 309940 371928 402922 464910 557892 604383 619880 697365 805844 929820 1007305 1115784 1208766 1394730 1611688 1813149 1859640 2014610 2417532 2789460 3021915 3626298 4029220 4835064 5578920 6043830 7252596 8058440 9065745 12087660 14505192 18131490 24175320 36262980 72525960