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20238596816 = 242397566971
BaseRepresentation
bin10010110110010100…
…000111101011010000
31221020110111020112212
4102312110013223100
5312422040044231
613144131211252
71314350143304
oct226624075320
957213436485
1020238596816
118646184379
123b09a46b28
131ba6c56b99
14d9dc73d04
157d6b9b42b
hex4b6507ad0

20238596816 has 40 divisors (see below), whose sum is σ = 41339062464. Its totient is φ = 9579525120.

The previous prime is 20238596813. The next prime is 20238596867. The reversal of 20238596816 is 61869583202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20238596813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247790 + ... + 319181.

Almost surely, 220238596816 is an apocalyptic number.

It is an amenable number.

20238596816 is an abundant number, since it is smaller than the sum of its proper divisors (21100465648).

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

20238596816 is a wasteful number, since it uses less digits than its factorization.

20238596816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567099 (or 567093 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 20238596816 in words is "twenty billion, two hundred thirty-eight million, five hundred ninety-six thousand, eight hundred sixteen".

Divisors: 1 2 4 8 16 23 46 92 97 184 194 368 388 776 1552 2231 4462 8924 17848 35696 566971 1133942 2267884 4535768 9071536 13040333 26080666 52161332 54996187 104322664 109992374 208645328 219984748 439969496 879938992 1264912301 2529824602 5059649204 10119298408 20238596816