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12550457760 = 253526146787
BaseRepresentation
bin10111011000001000…
…01100100110100000
31012101122220022102220
423230010030212200
5201200404122020
65433211511040
7623004062601
oct135404144640
935348808386
1012550457760
115360451745
122523158480
131250205489
14870b89da8
154d6c54240
hex2ec10c9a0

12550457760 has 48 divisors (see below), whose sum is σ = 39533943456. Its totient is φ = 3346788608.

The previous prime is 12550457747. The next prime is 12550457783. The reversal of 12550457760 is 6775405521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 13072914 + ... + 13073873.

It is an arithmetic number, because the mean of its divisors is an integer number (823623822).

Almost surely, 212550457760 is an apocalyptic number.

12550457760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12550457760 is an abundant number, since it is smaller than the sum of its proper divisors (26983485696).

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

12550457760 is a wasteful number, since it uses less digits than its factorization.

12550457760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26146805 (or 26146797 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 12550457760 in words is "twelve billion, five hundred fifty million, four hundred fifty-seven thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 26146787 52293574 78440361 104587148 130733935 156880722 209174296 261467870 313761444 392201805 418348592 522935740 627522888 784403610 836697184 1045871480 1255045776 1568807220 2091742960 2510091552 3137614440 4183485920 6275228880 12550457760