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872580960 = 25325976247
BaseRepresentation
bin110100000000101…
…000011101100000
32020210220201001100
4310000220131200
53241340042320
6222330234400
730423546546
oct6400503540
92223821040
10872580960
11408604a99
12204285a00
1310ba163c4
1483c5dd96
1551912790
hex34028760

872580960 has 144 divisors (see below), whose sum is σ = 3008861856. Its totient is φ = 230252544.

The previous prime is 872580959. The next prime is 872581001. The reversal of 872580960 is 69085278.

872580960 is a `hidden beast` number, since 8 + 7 + 2 + 580 + 9 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×8725809602 = 1522795063509043200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136557 + ... + 142803.

It is an arithmetic number, because the mean of its divisors is an integer number (20894874).

Almost surely, 2872580960 is an apocalyptic number.

872580960 is a gapful number since it is divisible by the number (80) 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 872580960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1504430928).

872580960 is an abundant number, since it is smaller than the sum of its proper divisors (2136280896).

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

872580960 is a wasteful number, since it uses less digits than its factorization.

872580960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6365 (or 6354 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 872580960 is about 29539.4813766254. The cubic root of 872580960 is about 955.5833574829.

The spelling of 872580960 in words is "eight hundred seventy-two million, five hundred eighty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 97 120 144 160 180 194 240 288 291 360 388 480 485 582 720 776 873 970 1164 1440 1455 1552 1746 1940 2328 2910 3104 3492 3880 4365 4656 5820 6247 6984 7760 8730 9312 11640 12494 13968 15520 17460 18741 23280 24988 27936 31235 34920 37482 46560 49976 56223 62470 69840 74964 93705 99952 112446 124940 139680 149928 187410 199904 224892 249880 281115 299856 374820 449784 499760 562230 599712 605959 749640 899568 999520 1124460 1211918 1499280 1799136 1817877 2248920 2423836 2998560 3029795 3635754 4497840 4847672 5453631 6059590 7271508 8995680 9089385 9695344 10907262 12119180 14543016 18178770 19390688 21814524 24238360 27268155 29086032 36357540 43629048 48476720 54536310 58172064 72715080 87258096 96953440 109072620 145430160 174516192 218145240 290860320 436290480 872580960