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12304545550 = 2521123099689
BaseRepresentation
bin10110111010110100…
…00111011100001110
31011202112011200022021
423131122013130032
5200144430424200
65352545040354
7613626624433
oct133532073416
934675150267
1012304545550
115244660210
1224749260ba
1312112945ab
1484a255b8a
154c037b41a
hex2dd68770e

12304545550 has 48 divisors (see below), whose sum is σ = 24980432400. Its totient is φ = 4471980800.

The previous prime is 12304545523. The next prime is 12304545553. The reversal of 12304545550 is 5554540321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304545553) 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 23 ways as a sum of consecutive naturals, for example, 1265106 + ... + 1274794.

It is an arithmetic number, because the mean of its divisors is an integer number (520425675).

Almost surely, 212304545550 is an apocalyptic number.

12304545550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12304545550 is an abundant number, since it is smaller than the sum of its proper divisors (12675886850).

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

12304545550 is a wasteful number, since it uses less digits than its factorization.

12304545550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12021 (or 12016 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 12304545550 in words is "twelve billion, three hundred four million, five hundred forty-five thousand, five hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 2309 4618 9689 11545 19378 23090 25399 48445 50798 57725 96890 106579 115450 126995 213158 242225 253990 484450 532895 634975 1065790 1269950 2664475 5328950 22371901 44743802 111859505 223719010 246090911 492181822 559297525 1118595050 1230454555 2460909110 6152272775 12304545550