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13023102312 = 23321116443311
BaseRepresentation
bin11000010000011110…
…01100010101101000
31020121121021010212200
430020033030111220
5203132403233222
65552134140200
7640503354213
oct141017142550
936547233780
1013023102312
115583224580
1226354b1660
1312c71001cc
148b786077a
155134b6eac
hex3083cc568

13023102312 has 48 divisors (see below), whose sum is σ = 38477350080. Its totient is φ = 3946394400.

The previous prime is 13023102311. The next prime is 13023102347. The reversal of 13023102312 is 21320132031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13023102311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8220864 + ... + 8222447.

It is an arithmetic number, because the mean of its divisors is an integer number (801611460).

Almost surely, 213023102312 is an apocalyptic number.

13023102312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13023102312 is an abundant number, since it is smaller than the sum of its proper divisors (25454247768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13023102312 is a wasteful number, since it uses less digits than its factorization.

13023102312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16443334 (or 16443327 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13023102312 its reverse (21320132031), we get a palindrome (34343234343).

The spelling of 13023102312 in words is "thirteen billion, twenty-three million, one hundred two thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 792 16443311 32886622 49329933 65773244 98659866 131546488 147989799 180876421 197319732 295979598 361752842 394639464 542629263 591959196 723505684 1085258526 1183918392 1447011368 1627887789 2170517052 3255775578 4341034104 6511551156 13023102312