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12347061852 = 2231761139901
BaseRepresentation
bin10110111111111000…
…10011011001011100
31011212111011201201010
423133330103121130
5200241321434402
65401104215220
7614654202606
oct133774233134
934774151633
1012347061852
11526665a354
12248700a510
13121a02c578
14851b62176
154c3e78a6c
hex2dff1365c

12347061852 has 48 divisors (see below), whose sum is σ = 30512577312. Its totient is φ = 3872563200.

The previous prime is 12347061829. The next prime is 12347061893. The reversal of 12347061852 is 25816074321.

It is a super-2 number, since 2×123470618522 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12347061852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242102 + ... + 1252002.

It is an arithmetic number, because the mean of its divisors is an integer number (635678694).

Almost surely, 212347061852 is an apocalyptic number.

12347061852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12347061852 is an abundant number, since it is smaller than the sum of its proper divisors (18165515460).

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

12347061852 is a wasteful number, since it uses less digits than its factorization.

12347061852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16038 (or 16036 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 12347061852 in words is "twelve billion, three hundred forty-seven million, sixty-one thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 6113 9901 12226 18339 19802 24452 29703 36678 39604 59406 73356 103921 118812 168317 207842 311763 336634 415684 504951 623526 673268 1009902 1247052 2019804 60524813 121049626 181574439 242099252 363148878 726297756 1028921821 2057843642 3086765463 4115687284 6173530926 12347061852