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20068725696 = 263293604297
BaseRepresentation
bin10010101100001100…
…000111001111000000
31220210121211220011220
4102230030013033000
5312100043210241
613115222235040
71310215232235
oct225414071700
956717756156
1020068725696
1185692aa718
123a80b85a80
131b7a9bb426
14d8549578c
157c6ce4166
hex4ac3073c0

20068725696 has 56 divisors (see below), whose sum is σ = 54929501520. Its totient is φ = 6458898432.

The previous prime is 20068725679. The next prime is 20068725707. The reversal of 20068725696 is 69652786002.

It is a super-2 number, since 2×200687256962 (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, 1796581 + ... + 1807716.

Almost surely, 220068725696 is an apocalyptic number.

It is an amenable number.

20068725696 is an abundant number, since it is smaller than the sum of its proper divisors (34860775824).

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

20068725696 is a wasteful number, since it uses less digits than its factorization.

20068725696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604341 (or 3604331 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 20068725696 in words is "twenty billion, sixty-eight million, seven hundred twenty-five thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 29 32 48 58 64 87 96 116 174 192 232 348 464 696 928 1392 1856 2784 5568 3604297 7208594 10812891 14417188 21625782 28834376 43251564 57668752 86503128 104524613 115337504 173006256 209049226 230675008 313573839 346012512 418098452 627147678 692025024 836196904 1254295356 1672393808 2508590712 3344787616 5017181424 6689575232 10034362848 20068725696