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12431033424 = 243286326621
BaseRepresentation
bin10111001001111001…
…01000010001010000
31012002100011221001100
423210330220101100
5200424321032144
65413304104400
7620024016645
oct134474502120
935070157040
1012431033424
1152a9aa3447
1224ab165100
1312315505a4
1485cd7ddcc
154cb514269
hex2e4f28450

12431033424 has 30 divisors (see below), whose sum is σ = 34789628666. Its totient is φ = 4143677760.

The previous prime is 12431033411. The next prime is 12431033441. The reversal of 12431033424 is 42433013421.

12431033424 is a `hidden beast` number, since 1 + 2 + 4 + 310 + 3 + 342 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9649525824 + 2781507600 = 98232^2 + 52740^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43163167 + ... + 43163454.

Almost surely, 212431033424 is an apocalyptic number.

It is an amenable number.

12431033424 is an abundant number, since it is smaller than the sum of its proper divisors (22358595242).

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

12431033424 is a wasteful number, since it uses less digits than its factorization.

12431033424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86326635 (or 86326626 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12431033424 its reverse (42433013421), we get a palindrome (54864046845).

The spelling of 12431033424 in words is "twelve billion, four hundred thirty-one million, thirty-three thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 86326621 172653242 258979863 345306484 517959726 690612968 776939589 1035919452 1381225936 1553879178 2071838904 3107758356 4143677808 6215516712 12431033424