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12427125415 = 57997324341
BaseRepresentation
bin10111001001011011…
…01110001010100111
31012002001211101021021
423210231232022213
5200422321003130
65413044232011
7616645552225
oct134455561247
935061741237
1012427125415
1152a7874291
1224a999b607
1312307b2863
1485c643b15
154caee137a
hex2e4b6e2a7

12427125415 has 16 divisors (see below), whose sum is σ = 15257047680. Its totient is φ = 9714631680.

The previous prime is 12427125407. The next prime is 12427125457. The reversal of 12427125415 is 51452172421.

It is not a de Polignac number, because 12427125415 - 23 = 12427125407 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 123856 + ... + 200485.

It is an arithmetic number, because the mean of its divisors is an integer number (953565480).

Almost surely, 212427125415 is an apocalyptic number.

12427125415 is a deficient number, since it is larger than the sum of its proper divisors (2829922265).

12427125415 is an equidigital number, since it uses as much as digits as its factorization.

12427125415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324522.

The product of its digits is 22400, while the sum is 34.

Adding to 12427125415 its reverse (51452172421), we get a palindrome (63879297836).

The spelling of 12427125415 in words is "twelve billion, four hundred twenty-seven million, one hundred twenty-five thousand, four hundred fifteen".

Divisors: 1 5 79 97 395 485 7663 38315 324341 1621705 25622939 31461077 128114695 157305385 2485425083 12427125415