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12351756552 = 23383274707
BaseRepresentation
bin10111000000011100…
…01101100100001000
31011212211000020121220
423200032031210020
5200244022202202
65401353002040
7615042125022
oct134016154410
934784006556
1012351756552
115269276573
1224886b3320
13121acb43b5
14852625012
154c45a4abc
hex2e038d908

12351756552 has 48 divisors (see below), whose sum is σ = 31256333040. Its totient is φ = 4067592288.

The previous prime is 12351756533. The next prime is 12351756581. The reversal of 12351756552 is 25565715321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127983 + ... + 202689.

It is an arithmetic number, because the mean of its divisors is an integer number (651173605).

Almost surely, 212351756552 is an apocalyptic number.

12351756552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12351756552 is an abundant number, since it is smaller than the sum of its proper divisors (18904576488).

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

12351756552 is an equidigital number, since it uses as much as digits as its factorization.

12351756552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74882 (or 74795 counting only the distinct ones).

The product of its digits is 315000, while the sum is 42.

The spelling of 12351756552 in words is "twelve billion, three hundred fifty-one million, seven hundred fifty-six thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 83 166 249 332 498 664 996 1992 6889 13778 20667 27556 41334 55112 74707 82668 149414 165336 224121 298828 448242 597656 896484 1792968 6200681 12401362 18602043 24802724 37204086 49605448 74408172 148816344 514656523 1029313046 1543969569 2058626092 3087939138 4117252184 6175878276 12351756552