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725161372 = 2213193783239
BaseRepresentation
bin101011001110010…
…001010110011100
31212112112000101121
4223032101112130
52441120130442
6155542420324
723653525045
oct5316212634
91775460347
10725161372
11342375521
12182a316a4
13b730bb90
146c4478cc
15439e2967
hex2b39159c

725161372 has 96 divisors (see below), whose sum is σ = 1501516800. Its totient is φ = 303512832.

The previous prime is 725161369. The next prime is 725161387. The reversal of 725161372 is 273161527.

725161372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3034029 + ... + 3034267.

It is an arithmetic number, because the mean of its divisors is an integer number (15640800).

Almost surely, 2725161372 is an apocalyptic number.

It is an amenable number.

725161372 is an abundant number, since it is smaller than the sum of its proper divisors (776355428).

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

725161372 is a wasteful number, since it uses less digits than its factorization.

725161372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 393 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 725161372 is about 26928.8204717548. The cubic root of 725161372 is about 898.4175368935.

The spelling of 725161372 in words is "seven hundred twenty-five million, one hundred sixty-one thousand, three hundred seventy-two".

Divisors: 1 2 4 13 19 26 37 38 52 74 76 83 148 166 239 247 332 478 481 494 703 956 962 988 1079 1406 1577 1924 2158 2812 3071 3107 3154 4316 4541 6142 6214 6308 8843 9082 9139 12284 12428 17686 18164 18278 19837 20501 35372 36556 39674 39923 41002 58349 59033 79348 79846 82004 114959 116698 118066 159692 168017 229918 233396 236132 257881 336034 376903 459836 515762 672068 733969 753806 758537 1031524 1467938 1507612 1517074 2184221 2935876 3034148 4368442 4899739 8736884 9541597 9799478 13945411 19083194 19598956 27890822 38166388 55781644 181290343 362580686 725161372