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20067751368 = 23327139286453
BaseRepresentation
bin10010101100001000…
…011001010111001000
31220210120000101122200
4102230020121113020
5312044321020433
613115145320200
71310204033520
oct225410312710
956716011580
1020067751368
1185687a4695
123a80796060
131b7a739ac2
14d852c0680
157c6ba0613
hex4ac2195c8

20067751368 has 96 divisors (see below), whose sum is σ = 62561553600. Its totient is φ = 5692374144.

The previous prime is 20067751343. The next prime is 20067751373. The reversal of 20067751368 is 86315776002.

20067751368 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 77 + 513 + 68 = 666.

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, 73171 + ... + 213282.

It is an arithmetic number, because the mean of its divisors is an integer number (651682850).

Almost surely, 220067751368 is an apocalyptic number.

20067751368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20067751368 is an abundant number, since it is smaller than the sum of its proper divisors (42493802232).

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

20067751368 is a wasteful number, since it uses less digits than its factorization.

20067751368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286611 (or 286604 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 20067751368 in words is "twenty billion, sixty-seven million, seven hundred fifty-one thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 139 168 252 278 417 504 556 834 973 1112 1251 1668 1946 2502 2919 3336 3892 5004 5838 7784 8757 10008 11676 17514 23352 35028 70056 286453 572906 859359 1145812 1718718 2005171 2291624 2578077 3437436 4010342 5156154 6015513 6874872 8020684 10312308 12031026 16041368 18046539 20624616 24062052 36093078 39816967 48124104 72186156 79633934 119450901 144372312 159267868 238901802 278718769 318535736 358352703 477803604 557437538 716705406 836156307 955607208 1114875076 1433410812 1672312614 2229750152 2508468921 2866821624 3344625228 5016937842 6689250456 10033875684 20067751368