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23405451884680 = 2352015572903081
BaseRepresentation
bin1010101001001100000011…
…01001010011100010001000
310001212112120011222120220111
411110212001221103202020
511031433331140302210
6121440152142404104
74633662626313355
oct524460151234210
9101775504876814
1023405451884680
117504218456828
122760172590634
13100a180aba328
145acb8940762c
152a8c6993b88a
hex154981a53888

23405451884680 has 32 divisors (see below), whose sum is σ = 52662546158040. Its totient is φ = 9362131079680.

The previous prime is 23405451884677. The next prime is 23405451884707. The reversal of 23405451884680 is 8648815450432.

It can be written as a sum of positive squares in 4 ways, for example, as 19303879129924 + 4101572754756 = 4393618^2 + 2025234^2 .

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, 6610740 + ... + 9513820.

Almost surely, 223405451884680 is an apocalyptic number.

23405451884680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23405451884680 is an abundant number, since it is smaller than the sum of its proper divisors (29257094273360).

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

23405451884680 is a wasteful number, since it uses less digits than its factorization.

23405451884680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104649 (or 3104645 counting only the distinct ones).

The product of its (nonzero) digits is 29491200, while the sum is 58.

The spelling of 23405451884680 in words is "twenty-three trillion, four hundred five billion, four hundred fifty-one million, eight hundred eighty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 201557 403114 806228 1007785 1612456 2015570 2903081 4031140 5806162 8062280 11612324 14515405 23224648 29030810 58061620 116123240 585136297117 1170272594234 2340545188468 2925681485585 4681090376936 5851362971170 11702725942340 23405451884680