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12421502462530 = 257178999189511
BaseRepresentation
bin1011010011000001101100…
…1111011110101001000010
31121222111001212022202011101
42310300123033132221002
53112003214112300110
642230205350405014
72421265260562450
oct264603317365102
947874055282141
1012421502462530
113a59a25348597
12148745406076a
136c145ba7a925
1430d2bd80b9d0
151681a241913a
hexb4c1b3dea42

12421502462530 has 32 divisors (see below), whose sum is σ = 25567088613120. Its totient is φ = 4256420253120.

The previous prime is 12421502462483. The next prime is 12421502462563. The reversal of 12421502462530 is 3526420512421.

12421502462530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12421502462530.

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, 49469526 + ... + 49719985.

It is an arithmetic number, because the mean of its divisors is an integer number (798971519160).

Almost surely, 212421502462530 is an apocalyptic number.

12421502462530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12421502462530 is an abundant number, since it is smaller than the sum of its proper divisors (13145586150590).

12421502462530 is a wasteful number, since it uses less digits than its factorization.

12421502462530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99191314.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 12421502462530 its reverse (3526420512421), we get a palindrome (15947922974951).

The spelling of 12421502462530 in words is "twelve trillion, four hundred twenty-one billion, five hundred two million, four hundred sixty-two thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1789 3578 8945 12523 17890 25046 62615 125230 99189511 198379022 495947555 694326577 991895110 1388653154 3471632885 6943265770 177450035179 354900070358 887250175895 1242150246253 1774500351790 2484300492506 6210751231265 12421502462530