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725726760 = 233511619013
BaseRepresentation
bin101011010000011…
…011011000101000
31212120120201221220
4223100123120220
52441241224020
6200002502040
723661401313
oct5320333050
91776521856
10725726760
11342721290
12183064920
13b7479325
146c55397a
1543aa5240
hex2b41b628

725726760 has 128 divisors (see below), whose sum is σ = 2414309760. Its totient is φ = 173030400.

The previous prime is 725726747. The next prime is 725726767. The reversal of 725726760 is 67627527.

It is not an unprimeable number, because it can be changed into a prime (725726767) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 76014 + ... + 85026.

It is an arithmetic number, because the mean of its divisors is an integer number (18861795).

Almost surely, 2725726760 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 725726760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207154880).

725726760 is an abundant number, since it is smaller than the sum of its proper divisors (1688583000).

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

725726760 is a wasteful number, since it uses less digits than its factorization.

725726760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099 (or 9095 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 725726760 is about 26939.3162496749. The cubic root of 725726760 is about 898.6509665633.

The spelling of 725726760 in words is "seven hundred twenty-five million, seven hundred twenty-six thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 61 66 88 110 120 122 132 165 183 220 244 264 305 330 366 440 488 610 660 671 732 915 1220 1320 1342 1464 1830 2013 2440 2684 3355 3660 4026 5368 6710 7320 8052 9013 10065 13420 16104 18026 20130 26840 27039 36052 40260 45065 54078 72104 80520 90130 99143 108156 135195 180260 198286 216312 270390 297429 360520 396572 495715 540780 549793 594858 793144 991430 1081560 1099586 1189716 1487145 1649379 1982860 2199172 2379432 2748965 2974290 3298758 3965720 4398344 5497930 5948580 6047723 6597516 8246895 10995860 11897160 12095446 13195032 16493790 18143169 21991720 24190892 30238615 32987580 36286338 48381784 60477230 65975160 72572676 90715845 120954460 145145352 181431690 241908920 362863380 725726760