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12554344131 = 37597825911
BaseRepresentation
bin10111011000100110…
…00001011011000011
31012101221012202112120
423230103001123003
5201202403003011
65433431055323
7623052110250
oct135423013303
935357182476
1012554344131
11536266661a
122524511543
131250c663c4
148714bc427
154d7270a06
hex2ec4c16c3

12554344131 has 8 divisors (see below), whose sum is σ = 19130429184. Its totient is φ = 7173910920.

The previous prime is 12554344129. The next prime is 12554344147. The reversal of 12554344131 is 13144345521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12554344131 - 21 = 12554344129 is a prime.

It is a super-2 number, since 2×125543441312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12554344092 and 12554344101.

It is not an unprimeable number, because it can be changed into a prime (12554144131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298912935 + ... + 298912976.

It is an arithmetic number, because the mean of its divisors is an integer number (2391303648).

Almost surely, 212554344131 is an apocalyptic number.

12554344131 is a deficient number, since it is larger than the sum of its proper divisors (6576085053).

12554344131 is an equidigital number, since it uses as much as digits as its factorization.

12554344131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597825921.

The product of its digits is 28800, while the sum is 33.

Adding to 12554344131 its reverse (13144345521), we get a palindrome (25698689652).

The spelling of 12554344131 in words is "twelve billion, five hundred fifty-four million, three hundred forty-four thousand, one hundred thirty-one".

Divisors: 1 3 7 21 597825911 1793477733 4184781377 12554344131