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20122401982 = 2131461166601
BaseRepresentation
bin10010101111011000…
…110111110010111110
31220221100211221012111
4102233120313302332
5312202313330412
613124420524234
71311436410664
oct225730676276
956840757174
1020122401982
118596631491
123a96b5067a
131b88b62c47
14d8c668c34
157cb8982a7
hex4af637cbe

20122401982 has 16 divisors (see below), whose sum is σ = 30480169104. Its totient is φ = 9962680000.

The previous prime is 20122401973. The next prime is 20122402021. The reversal of 20122401982 is 28910422102.

It is a super-2 number, since 2×201224019822 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37482 + ... + 204082.

It is an arithmetic number, because the mean of its divisors is an integer number (1905010569).

Almost surely, 220122401982 is an apocalyptic number.

20122401982 is a deficient number, since it is larger than the sum of its proper divisors (10357767122).

20122401982 is a wasteful number, since it uses less digits than its factorization.

20122401982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167195.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 20122401982 in words is "twenty billion, one hundred twenty-two million, four hundred one thousand, nine hundred eighty-two".

Divisors: 1 2 131 262 461 922 60391 120782 166601 333202 21824731 43649462 76803061 153606122 10061200991 20122401982