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13431244024 = 2311359425147
BaseRepresentation
bin11001000001001000…
…01000010011111000
31021200001020220001101
430200210020103320
5210001344302044
610100434101144
7653560455562
oct144044102370
937601226041
1013431244024
115772650480
12272a11a7b4
131360832593
14915b44332
15539237cd4
hex3209084f8

13431244024 has 32 divisors (see below), whose sum is σ = 27549590400. Its totient is φ = 6088090720.

The previous prime is 13431244007. The next prime is 13431244027. The reversal of 13431244024 is 42044213431.

It is a junction number, because it is equal to n+sod(n) for n = 13431243983 and 13431244001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431244027) 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, 180982 + ... + 244165.

It is an arithmetic number, because the mean of its divisors is an integer number (860924700).

Almost surely, 213431244024 is an apocalyptic number.

It is an amenable number.

13431244024 is an abundant number, since it is smaller than the sum of its proper divisors (14118346376).

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

13431244024 is a wasteful number, since it uses less digits than its factorization.

13431244024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425523 (or 425519 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13431244024 its reverse (42044213431), we get a palindrome (55475457455).

The spelling of 13431244024 in words is "thirteen billion, four hundred thirty-one million, two hundred forty-four thousand, twenty-four".

Divisors: 1 2 4 8 11 22 44 88 359 718 1436 2872 3949 7898 15796 31592 425147 850294 1700588 3401176 4676617 9353234 18706468 37412936 152627773 305255546 610511092 1221022184 1678905503 3357811006 6715622012 13431244024