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72839908463320 = 23511712803554791
BaseRepresentation
bin10000100011111101011100…
…110111101001001011011000
3100112220102112110102100112101
4100203331130313221023120
534021402113031311240
6414530105245453144
721225336556211125
oct2043753467511330
9315812473370471
1072839908463320
1121233260438899
128204a41b711b4
133184a0a32a77b
1413db682a1b74c
15864aee71a39a
hex423f5cde92d8

72839908463320 has 64 divisors (see below), whose sum is σ = 164088566288640. Its totient is φ = 29100643977600.

The previous prime is 72839908463317. The next prime is 72839908463347. The reversal of 72839908463320 is 2336480993827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131015125 + ... + 131569915.

It is an arithmetic number, because the mean of its divisors is an integer number (2563883848260).

Almost surely, 272839908463320 is an apocalyptic number.

It is an amenable number.

72839908463320 is an abundant number, since it is smaller than the sum of its proper divisors (91248657825320).

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

72839908463320 is a wasteful number, since it uses less digits than its factorization.

72839908463320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558776 (or 558772 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 64.

The spelling of 72839908463320 in words is "seventy-two trillion, eight hundred thirty-nine billion, nine hundred eight million, four hundred sixty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1171 2342 2803 4684 5606 5855 9368 11212 11710 14015 22424 23420 28030 46840 56060 112120 554791 1109582 2219164 2773955 3282313 4438328 5547910 6564626 11095820 13129252 16411565 22191640 26258504 32823130 65646260 131292520 649660261 1299320522 1555079173 2598641044 3110158346 3248301305 5197282088 6220316692 6496602610 7775395865 12440633384 12993205220 15550791730 25986410440 31101583460 62203166920 1820997711583 3641995423166 7283990846332 9104988557915 14567981692664 18209977115830 36419954231660 72839908463320