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20500967448 = 23321329755267
BaseRepresentation
bin10011000101111100…
…111111000000011000
31221220202012001101200
4103011330333000120
5313441221424243
613230142514200
71324014230253
oct230574770030
957822161350
1020500967448
118770297305
123b81895960
131c1940b190
14dc6a5009a
157eec25ad3
hex4c5f3f018

20500967448 has 96 divisors (see below), whose sum is σ = 61856449200. Its totient is φ = 6090465024.

The previous prime is 20500967441. The next prime is 20500967503. The reversal of 20500967448 is 84476900502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20500967441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350490 + ... + 404777.

Almost surely, 220500967448 is an apocalyptic number.

It is an amenable number.

20500967448 is an abundant number, since it is smaller than the sum of its proper divisors (41355481752).

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

20500967448 is a wasteful number, since it uses less digits than its factorization.

20500967448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755321 (or 755314 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 20500967448 in words is "twenty billion, five hundred million, nine hundred sixty-seven thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 29 36 39 52 58 72 78 87 104 116 117 156 174 232 234 261 312 348 377 468 522 696 754 936 1044 1131 1508 2088 2262 3016 3393 4524 6786 9048 13572 27144 755267 1510534 2265801 3021068 4531602 6042136 6797403 9063204 9818471 13594806 18126408 19636942 21902743 27189612 29455413 39273884 43805486 54379224 58910826 65708229 78547768 87610972 88366239 117821652 131416458 175221944 176732478 197124687 235643304 262832916 284735659 353464956 394249374 525665832 569471318 706929912 788498748 854206977 1138942636 1576997496 1708413954 2277885272 2562620931 3416827908 5125241862 6833655816 10250483724 20500967448