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12453630072 = 2331343928267
BaseRepresentation
bin10111001100100101…
…10101000001111000
31012010220200221211020
423212102311001320
5201001112130242
65415432302440
7620420052252
oct134622650170
935126627736
1012453630072
115310827664
1224b6841a20
1312361328a0
14861d82cd2
154cd4c96ec
hex2e64b5078

12453630072 has 64 divisors (see below), whose sum is σ = 34308785280. Its totient is φ = 3742768512.

The previous prime is 12453630067. The next prime is 12453630103. The reversal of 12453630072 is 27003635421.

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, 450718 + ... + 477549.

It is an arithmetic number, because the mean of its divisors is an integer number (536074770).

Almost surely, 212453630072 is an apocalyptic number.

12453630072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12453630072 is an abundant number, since it is smaller than the sum of its proper divisors (21855155208).

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

12453630072 is a wasteful number, since it uses less digits than its factorization.

12453630072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928332 (or 928328 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 12453630072 in words is "twelve billion, four hundred fifty-three million, six hundred thirty thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 43 52 78 86 104 129 156 172 258 312 344 516 559 1032 1118 1677 2236 3354 4472 6708 13416 928267 1856534 2784801 3713068 5569602 7426136 11139204 12067471 22278408 24134942 36202413 39915481 48269884 72404826 79830962 96539768 119746443 144809652 159661924 239492886 289619304 319323848 478985772 518901253 957971544 1037802506 1556703759 2075605012 3113407518 4151210024 6226815036 12453630072