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12502552520 = 2351923715249
BaseRepresentation
bin10111010010011010…
…11100111111001000
31012021022202110210202
423221031130333020
5201101123140040
65424341031332
7621552641303
oct135115347710
935238673722
1012502552520
115336401837
12250b0b5548
131243301693
14868679b3a
154d2940015
hex2e935cfc8

12502552520 has 64 divisors (see below), whose sum is σ = 30898800000. Its totient is φ = 4531811328.

The previous prime is 12502552499. The next prime is 12502552523. The reversal of 12502552520 is 2525520521.

It is not an unprimeable number, because it can be changed into a prime (12502552523) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 340145 + ... + 375104.

It is an arithmetic number, because the mean of its divisors is an integer number (482793750).

Almost surely, 212502552520 is an apocalyptic number.

12502552520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12502552520 is an abundant number, since it is smaller than the sum of its proper divisors (18396247480).

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

12502552520 is a wasteful number, since it uses less digits than its factorization.

12502552520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715302 (or 715298 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 12502552520 in words is "twelve billion, five hundred two million, five hundred fifty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 23 38 40 46 76 92 95 115 152 184 190 230 380 437 460 760 874 920 1748 2185 3496 4370 8740 17480 715249 1430498 2860996 3576245 5721992 7152490 13589731 14304980 16450727 27179462 28609960 32901454 54358924 65802908 67948655 82253635 108717848 131605816 135897310 164507270 271794620 312563813 329014540 543589240 625127626 658029080 1250255252 1562819065 2500510504 3125638130 6251276260 12502552520