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20752459892 = 22127197207367
BaseRepresentation
bin10011010100111100…
…010110100001110100
31222120021102012011122
4103110330112201310
5320000112204032
613311125123112
71333156666343
oct232474264164
958507365148
1020752459892
11888a24a2aa
124031b59498
131c59553c88
14100c1d7b5a
15816d52012
hex4d4f16874

20752459892 has 24 divisors (see below), whose sum is σ = 36788742144. Its totient is φ = 10242221472.

The previous prime is 20752459883. The next prime is 20752459913. The reversal of 20752459892 is 29895425702.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3608 + ... + 203759.

It is an arithmetic number, because the mean of its divisors is an integer number (1532864256).

Almost surely, 220752459892 is an apocalyptic number.

It is an amenable number.

20752459892 is a deficient number, since it is larger than the sum of its proper divisors (16036282252).

20752459892 is a wasteful number, since it uses less digits than its factorization.

20752459892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207695 (or 207693 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 20752459892 in words is "twenty billion, seven hundred fifty-two million, four hundred fifty-nine thousand, eight hundred ninety-two".

Divisors: 1 2 4 127 197 254 394 508 788 25019 50038 100076 207367 414734 829468 26335609 40851299 52671218 81702598 105342436 163405196 5188114973 10376229946 20752459892