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10915025625 = 3254721992
BaseRepresentation
bin10100010101001011…
…00001001011011001
31001011200112202022100
422022211201023121
5134323221310000
65003030514013
7534325121100
oct121245411331
931150482270
1010915025625
1146a127a339
122147505909
13104c44505a
147578b1037
1543d3a6a00
hex28a9612d9

10915025625 has 135 divisors (see below), whose sum is σ = 23033674521. Its totient is φ = 4964652000.

The previous prime is 10915025579. The next prime is 10915025647. The reversal of 10915025625 is 52652051901.

The square root of 10915025625 is 104475.

It is a perfect power (a square), and thus also a powerful number.

10915025625 is a `hidden beast` number, since 1 + 0 + 9 + 1 + 5 + 0 + 25 + 625 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 855738009 + 10059287616 = 29253^2 + 100296^2 .

It is not a de Polignac number, because 10915025625 - 27 = 10915025497 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10915025625.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 54849276 + ... + 54849474.

Almost surely, 210915025625 is an apocalyptic number.

10915025625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10915025625 is the 104475-th square number.

10915025625 is the 52238-th centered octagonal number.

It is an amenable number.

10915025625 is an abundant number, since it is smaller than the sum of its proper divisors (12118648896).

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

10915025625 is an frugal number, since it uses more digits than its factorization.

10915025625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Multiplying 10915025625 by its sum of digits (36), we get a square (392940922500 = 6268502).

The spelling of 10915025625 in words is "ten billion, nine hundred fifteen million, twenty-five thousand, six hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 49 63 75 105 125 147 175 199 225 245 315 375 441 525 597 625 735 875 995 1125 1225 1393 1575 1791 1875 2205 2625 2985 3675 4179 4375 4975 5625 6125 6965 7875 8955 9751 11025 12537 13125 14925 18375 20895 24875 29253 30625 34825 39375 39601 44775 48755 55125 62685 74625 87759 91875 104475 118803 124375 146265 174125 198005 223875 243775 275625 277207 313425 356409 373125 438795 522375 594015 731325 831621 870625 990025 1119375 1218875 1386035 1567125 1782045 1940449 2193975 2494863 2611875 2970075 3656625 4158105 4950125 5821347 6094375 6930175 7835625 8910225 9702245 10969875 12474315 14850375 17464041 18283125 20790525 24750625 29106735 34650875 44551125 48511225 54849375 62371575 74251875 87320205 103952625 145533675 173254375 222755625 242556125 311857875 436601025 519763125 727668375 1212780625 1559289375 2183005125 3638341875 10915025625