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725361480 = 233451911783
BaseRepresentation
bin101011001111000…
…010001101001000
31212112220011220000
4223033002031020
52441143031410
6155551003000
723655320334
oct5317021510
91775804800
10725361480
113424a18a8
12182b09460
13b737bc9c
146c49a7c4
1543a31dc0
hex2b3c2348

725361480 has 160 divisors (see below), whose sum is σ = 2566555200. Its totient is φ = 183233664.

The previous prime is 725361449. The next prime is 725361503. The reversal of 725361480 is 84163527.

725361480 is a `hidden beast` number, since 72 + 53 + 61 + 480 = 666.

It is a super-2 number, since 2×7253614802 = 1052298553335580800, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 55669 + ... + 67451.

It is an arithmetic number, because the mean of its divisors is an integer number (16040970).

Almost surely, 2725361480 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 725361480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283277600).

725361480 is an abundant number, since it is smaller than the sum of its proper divisors (1841193720).

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

725361480 is a wasteful number, since it uses less digits than its factorization.

725361480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11825 (or 11812 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 725361480 is about 26932.5357142620. The cubic root of 725361480 is about 898.5001686171.

The spelling of 725361480 in words is "seven hundred twenty-five million, three hundred sixty-one thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 27 30 36 38 40 45 54 57 60 72 76 81 90 95 108 114 120 135 152 162 171 180 190 216 228 270 285 324 342 360 380 405 456 513 540 570 648 684 760 810 855 1026 1080 1140 1368 1539 1620 1710 2052 2280 2565 3078 3240 3420 4104 5130 6156 6840 7695 10260 11783 12312 15390 20520 23566 30780 35349 47132 58915 61560 70698 94264 106047 117830 141396 176745 212094 223877 235660 282792 318141 353490 424188 447754 471320 530235 636282 671631 706980 848376 895508 954423 1060470 1119385 1272564 1343262 1413960 1590705 1791016 1908846 2014893 2120940 2238770 2545128 2686524 3181410 3358155 3817692 4029786 4241880 4477540 4772115 5373048 6044679 6362820 6716310 7635384 8059572 8955080 9544230 10074465 12089358 12725640 13432620 16119144 18134037 19088460 20148930 24178716 26865240 30223395 36268074 38176920 40297860 48357432 60446790 72536148 80595720 90670185 120893580 145072296 181340370 241787160 362680740 725361480