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12405240795 = 35827016053
BaseRepresentation
bin10111000110110100…
…01111001111011011
31012000112122112012210
423203122033033123
5200401220201140
65410543210203
7616261543533
oct134332171733
935015575183
1012405240795
115296487022
1224a25a6963
1312290bc68c
148597884c3
154c911bd80
hex2e368f3db

12405240795 has 8 divisors (see below), whose sum is σ = 19848385296. Its totient is φ = 6616128416.

The previous prime is 12405240763. The next prime is 12405240797. The reversal of 12405240795 is 59704250421.

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

It is a cyclic number.

It is not a de Polignac number, because 12405240795 - 25 = 12405240763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12405240797) 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, 413508012 + ... + 413508041.

It is an arithmetic number, because the mean of its divisors is an integer number (2481048162).

Almost surely, 212405240795 is an apocalyptic number.

12405240795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12405240795 is a deficient number, since it is larger than the sum of its proper divisors (7443144501).

12405240795 is an equidigital number, since it uses as much as digits as its factorization.

12405240795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827016061.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 12405240795 in words is "twelve billion, four hundred five million, two hundred forty thousand, seven hundred ninety-five".

Divisors: 1 3 5 15 827016053 2481048159 4135080265 12405240795