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28795598896920 = 23351912629648639
BaseRepresentation
bin1101000110000011111110…
…11100010111111100011000
310202221211110210112110001220
412203001333130113330120
512233241341304200140
6141124303203412040
76031261533051642
oct643017734277430
9122854423473056
1028795598896920
1191a2165972099
123290943984020
13130b54b0c644b
14717a0053b892
1534e08da37bd0
hex1a307f717f18

28795598896920 has 64 divisors (see below), whose sum is σ = 90933470208000. Its totient is φ = 7274677615488.

The previous prime is 28795598896891. The next prime is 28795598896937. The reversal of 28795598896920 is 2969889559782.

28795598896920 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 6314822040 + ... + 6314826599.

It is an arithmetic number, because the mean of its divisors is an integer number (1420835472000).

Almost surely, 228795598896920 is an apocalyptic number.

28795598896920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28795598896920 is an abundant number, since it is smaller than the sum of its proper divisors (62137871311080).

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

28795598896920 is a wasteful number, since it uses less digits than its factorization.

28795598896920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12629648672 (or 12629648668 counting only the distinct ones).

The product of its (nonzero) digits is 14108774400, while the sum is 87.

The spelling of 28795598896920 in words is "twenty-eight trillion, seven hundred ninety-five billion, five hundred ninety-eight million, eight hundred ninety-six thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 60 76 95 114 120 152 190 228 285 380 456 570 760 1140 2280 12629648639 25259297278 37888945917 50518594556 63148243195 75777891834 101037189112 126296486390 151555783668 189444729585 239963324141 252592972780 303111567336 378889459170 479926648282 505185945560 719889972423 757778918340 959853296564 1199816620705 1439779944846 1515557836680 1919706593128 2399633241410 2879559889692 3599449862115 4799266482820 5759119779384 7198899724230 9598532965640 14397799448460 28795598896920