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12307227855 = 3513563112103
BaseRepresentation
bin10110111011001000…
…10110010011001111
31011202201012221201220
423131210112103033
5200201122242410
65353122334423
7613661465526
oct133544262317
934681187656
1012307227855
11524612249a
1224757ba413
1312119c3460
1484a7534bd
154c070b070
hex2dd9164cf

12307227855 has 32 divisors (see below), whose sum is σ = 21244156416. Its totient is φ = 6048127104.

The previous prime is 12307227839. The next prime is 12307227857. The reversal of 12307227855 is 55872270321.

It is not a de Polignac number, because 12307227855 - 24 = 12307227839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12307227857) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 53734 + ... + 165836.

It is an arithmetic number, because the mean of its divisors is an integer number (663879888).

Almost surely, 212307227855 is an apocalyptic number.

12307227855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12307227855 is a deficient number, since it is larger than the sum of its proper divisors (8936928561).

12307227855 is a wasteful number, since it uses less digits than its factorization.

12307227855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112687.

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 12307227855 in words is "twelve billion, three hundred seven million, two hundred twenty-seven thousand, eight hundred fifty-five".

Divisors: 1 3 5 13 15 39 65 195 563 1689 2815 7319 8445 21957 36595 109785 112103 336309 560515 1457339 1681545 4372017 7286695 21860085 63113989 189341967 315569945 820481857 946709835 2461445571 4102409285 12307227855