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13013123232 = 253135553367
BaseRepresentation
bin11000001111010010…
…01000000010100000
31020120220111011011010
430013221020002200
5203122324420412
65551140220520
7640322502534
oct140751100240
936526434133
1013013123232
1155786290aa
12263209a740
1312c5018025
148b63c3bc4
1551269533c
hex307a480a0

13013123232 has 24 divisors (see below), whose sum is σ = 34159448736. Its totient is φ = 4337707712.

The previous prime is 13013123191. The next prime is 13013123243. The reversal of 13013123232 is 23232131031.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 13013123199 and 13013123208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67776588 + ... + 67776779.

It is an arithmetic number, because the mean of its divisors is an integer number (1423310364).

Almost surely, 213013123232 is an apocalyptic number.

13013123232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13013123232 is an abundant number, since it is smaller than the sum of its proper divisors (21146325504).

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

13013123232 is a wasteful number, since it uses less digits than its factorization.

13013123232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135553380 (or 135553372 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13013123232 its reverse (23232131031), we get a palindrome (36245254263).

The spelling of 13013123232 in words is "thirteen billion, thirteen million, one hundred twenty-three thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 135553367 271106734 406660101 542213468 813320202 1084426936 1626640404 2168853872 3253280808 4337707744 6506561616 13013123232