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530646431 = 7210829519
BaseRepresentation
bin11111101000010…
…000010110011111
31100222111122001112
4133220100112133
52041321141211
6124353332235
716102264100
oct3750202637
91328448045
10530646431
11252599577
1212986707b
1385c25393
14506923a7
15318bd88b
hex1fa1059f

530646431 has 6 divisors (see below), whose sum is σ = 617282640. Its totient is φ = 454839756.

The previous prime is 530646427. The next prime is 530646433. The reversal of 530646431 is 134646035.

It is not a de Polignac number, because 530646431 - 22 = 530646427 is a prime.

It is a super-2 number, since 2×5306464312 = 563171269466075522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530646433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5414711 + ... + 5414808.

It is an arithmetic number, because the mean of its divisors is an integer number (102880440).

Almost surely, 2530646431 is an apocalyptic number.

530646431 is a deficient number, since it is larger than the sum of its proper divisors (86636209).

530646431 is a wasteful number, since it uses less digits than its factorization.

530646431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10829533 (or 10829526 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 530646431 is about 23035.7641722605. The cubic root of 530646431 is about 809.5961157742.

It can be divided in two parts, 53064 and 6431, that added together give a palindrome (59495).

The spelling of 530646431 in words is "five hundred thirty million, six hundred forty-six thousand, four hundred thirty-one".

Divisors: 1 7 49 10829519 75806633 530646431