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38007452025 = 32524123172
BaseRepresentation
bin100011011001011010…
…111011000101111001
310122002210201121112100
4203121122323011321
51110314401431100
625243235334013
72513601004014
oct433132730571
9118083647470
1038007452025
1115134241284
127448751309
1337793170aa
141ba7ad237b
15ec6ae7400
hex8d96bb179

38007452025 has 81 divisors (see below), whose sum is σ = 69997255783. Its totient is φ = 19713849600.

The previous prime is 38007451991. The next prime is 38007452033. The reversal of 38007452025 is 52025470083.

The square root of 38007452025 is 194955.

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

38007452025 is a `hidden beast` number, since 380 + 0 + 74 + 5 + 202 + 5 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 30300016761 + 7707435264 = 174069^2 + 87792^2 .

It is not a de Polignac number, because 38007452025 - 213 = 38007443833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 119897167 + ... + 119897483.

Almost surely, 238007452025 is an apocalyptic number.

38007452025 is the 194955-th square number.

38007452025 is the 97478-th centered octagonal number.

It is an amenable number.

38007452025 is a deficient number, since it is larger than the sum of its proper divisors (31989803758).

38007452025 is an equidigital number, since it uses as much as digits as its factorization.

38007452025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Multiplying 38007452025 by its sum of digits (36), we get a square (1368268272900 = 11697302).

The spelling of 38007452025 in words is "thirty-eight billion, seven million, four hundred fifty-two thousand, twenty-five".

Divisors: 1 3 5 9 15 25 41 45 75 123 205 225 317 369 615 951 1025 1585 1681 1845 2853 3075 4755 5043 7925 8405 9225 12997 14265 15129 23775 25215 38991 42025 64985 71325 75645 100489 116973 126075 194955 301467 324925 378225 502445 532877 584865 904401 974775 1507335 1598631 2512225 2664385 2924325 4120049 4522005 4795893 7536675 7993155 12360147 13321925 20600245 22610025 23979465 37080441 39965775 61800735 103001225 119897325 168922009 185402205 309003675 506766027 844610045 927011025 1520298081 2533830135 4223050225 7601490405 12669150675 38007452025