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28795749120 = 283252499631
BaseRepresentation
bin11010110100010111…
…000100001100000000
32202022211021121201200
4122310113010030000
5432433202432440
621121212501200
72036404554225
oct326427041400
982284247650
1028795749120
11112374a4576
1256b777a800
13293ba42b08
14157252d94c
15b3804dc30
hex6b45c4300

28795749120 has 108 divisors (see below), whose sum is σ = 99630332256. Its totient is φ = 7678863360.

The previous prime is 28795749083. The next prime is 28795749133. The reversal of 28795749120 is 2194759782.

28795749120 is a `hidden beast` number, since 2 + 87 + 9 + 57 + 491 + 20 = 666.

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 11 ways as a sum of consecutive naturals, for example, 1238296 + ... + 1261335.

Almost surely, 228795749120 is an apocalyptic number.

28795749120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28795749120 is an abundant number, since it is smaller than the sum of its proper divisors (70834583136).

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

28795749120 is a wasteful number, since it uses less digits than its factorization.

28795749120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499658 (or 2499641 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 28795749120 in words is "twenty-eight billion, seven hundred ninety-five million, seven hundred forty-nine thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 576 640 720 768 960 1152 1280 1440 1920 2304 2880 3840 5760 11520 2499631 4999262 7498893 9998524 12498155 14997786 19997048 22496679 24996310 29995572 37494465 39994096 44993358 49992620 59991144 74988930 79988192 89986716 99985240 112483395 119982288 149977860 159976384 179973432 199970480 224966790 239964576 299955720 319952768 359946864 399940960 449933580 479929152 599911440 639905536 719893728 799881920 899867160 959858304 1199822880 1439787456 1599763840 1799734320 1919716608 2399645760 2879574912 3199527680 3599468640 4799291520 5759149824 7198937280 9598583040 14397874560 28795749120