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13431230105 = 5711073471019
BaseRepresentation
bin11001000001001000…
…00100111010011001
31021200001020011221212
430200210010322121
5210001343330410
610100433512505
7653560400156
oct144044047231
937601204855
1013431230105
115772640a77
12272a112735
131360829147
14915b3d22d
15539233b05
hex320904e99

13431230105 has 32 divisors (see below), whose sum is σ = 16561013760. Its totient is φ = 10454127040.

The previous prime is 13431230003. The next prime is 13431230117. The reversal of 13431230105 is 50103213431.

It is not a de Polignac number, because 13431230105 - 212 = 13431226009 is a prime.

It is a super-2 number, since 2×134312301052 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13180286 + ... + 13181304.

It is an arithmetic number, because the mean of its divisors is an integer number (517531680).

Almost surely, 213431230105 is an apocalyptic number.

It is an amenable number.

13431230105 is a deficient number, since it is larger than the sum of its proper divisors (3129783655).

13431230105 is a wasteful number, since it uses less digits than its factorization.

13431230105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 13431230105 its reverse (50103213431), we get a palindrome (63534443536).

The spelling of 13431230105 in words is "thirteen billion, four hundred thirty-one million, two hundred thirty thousand, one hundred five".

Divisors: 1 5 71 107 347 355 535 1019 1735 5095 7597 24637 37129 37985 72349 109033 123185 185645 353593 361745 545165 1767965 2636159 7741343 13180795 25105103 37834451 38706715 125525515 189172255 2686246021 13431230105