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20122311104 = 267103343481
BaseRepresentation
bin10010101111011000…
…100001100111000000
31220221100200022112122
4102233120201213000
5312202302423404
613124414543412
71311435552020
oct225730414700
956840608478
1020122311104
11859657a185
123a96b07b68
131b88b3077c
14d8c643a80
157cb87b3be
hex4af6219c0

20122311104 has 56 divisors (see below), whose sum is σ = 45679754208. Its totient is φ = 8615301120.

The previous prime is 20122311049. The next prime is 20122311107. The reversal of 20122311104 is 40111322102.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122311107) 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, 441044 + ... + 484524.

Almost surely, 220122311104 is an apocalyptic number.

It is an amenable number.

20122311104 is an abundant number, since it is smaller than the sum of its proper divisors (25557443104).

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

20122311104 is a wasteful number, since it uses less digits than its factorization.

20122311104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44533 (or 44523 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20122311104 its reverse (40111322102), we get a palindrome (60233633206).

The spelling of 20122311104 in words is "twenty billion, one hundred twenty-two million, three hundred eleven thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 448 1033 2066 4132 7231 8264 14462 16528 28924 33056 43481 57848 66112 86962 115696 173924 231392 304367 347848 462784 608734 695696 1217468 1391392 2434936 2782784 4869872 9739744 19479488 44915873 89831746 179663492 314411111 359326984 628822222 718653968 1257644444 1437307936 2515288888 2874615872 5030577776 10061155552 20122311104