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12527107640 = 2351801173891
BaseRepresentation
bin10111010101010110…
…00111111000111000
31012100000222000002122
423222223013320320
5201123414421030
65431015220412
7622301441465
oct135253077070
935300860078
1012527107640
115349253423
122517377708
13124841b238
1486ba2c66c
154d4b908e5
hex2eaac7e38

12527107640 has 32 divisors (see below), whose sum is σ = 28201804560. Its totient is φ = 5008032000.

The previous prime is 12527107627. The next prime is 12527107667. The reversal of 12527107640 is 4670172521.

It is a self number, because there is not a number n which added to its sum of digits gives 12527107640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14906 + ... + 158985.

Almost surely, 212527107640 is an apocalyptic number.

12527107640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12527107640 is an abundant number, since it is smaller than the sum of its proper divisors (15674696920).

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

12527107640 is a wasteful number, since it uses less digits than its factorization.

12527107640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175703 (or 175699 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 12527107640 in words is "twelve billion, five hundred twenty-seven million, one hundred seven thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1801 3602 7204 9005 14408 18010 36020 72040 173891 347782 695564 869455 1391128 1738910 3477820 6955640 313177691 626355382 1252710764 1565888455 2505421528 3131776910 6263553820 12527107640