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725956980 = 223578919421
BaseRepresentation
bin101011010001010…
…011100101110100
31212121000102202120
4223101103211310
52441321110410
6200011435540
723663350440
oct5321234564
91777012676
10725956980
11342869251
12183155bb0
13b752a058
146c5b3820
1543aed570
hex2b453974

725956980 has 96 divisors (see below), whose sum is σ = 2349285120. Its totient is φ = 164060160.

The previous prime is 725956969. The next prime is 725957047. The reversal of 725956980 is 89659527.

It is a happy number.

725956980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 27670 + ... + 47090.

It is an arithmetic number, because the mean of its divisors is an integer number (24471720).

Almost surely, 2725956980 is an apocalyptic number.

725956980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725956980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174642560).

725956980 is an abundant number, since it is smaller than the sum of its proper divisors (1623328140).

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

725956980 is a wasteful number, since it uses less digits than its factorization.

725956980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19529 (or 19527 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The square root of 725956980 is about 26943.5888478131. The cubic root of 725956980 is about 898.7459819162.

The spelling of 725956980 in words is "seven hundred twenty-five million, nine hundred fifty-six thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 89 105 140 178 210 267 356 420 445 534 623 890 1068 1246 1335 1780 1869 2492 2670 3115 3738 5340 6230 7476 9345 12460 18690 19421 37380 38842 58263 77684 97105 116526 135947 194210 233052 271894 291315 388420 407841 543788 582630 679735 815682 1165260 1359470 1631364 1728469 2039205 2718940 3456938 4078410 5185407 6913876 8156820 8642345 10370814 12099283 17284690 20741628 24198566 25927035 34569380 36297849 48397132 51854070 60496415 72595698 103708140 120992830 145191396 181489245 241985660 362978490 725956980