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530322431 = 2389449577
BaseRepresentation
bin11111100111000…
…001001111111111
31100221220011121112
4133213001033333
52041230304211
6124342352235
716066444352
oct3747011777
91327804545
10530322431
11252398101
1212972b67b
1385b40a72
145060a299
153185788b
hex1f9c13ff

530322431 has 16 divisors (see below), whose sum is σ = 561816000. Its totient is φ = 499580928.

The previous prime is 530322427. The next prime is 530322469. The reversal of 530322431 is 134223035.

It is a cyclic number.

It is not a de Polignac number, because 530322431 - 22 = 530322427 is a prime.

It is a super-2 number, since 2×5303224312 = 562483761643499522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530322397 and 530322406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530322421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918815 + ... + 919391.

It is an arithmetic number, because the mean of its divisors is an integer number (35113500).

Almost surely, 2530322431 is an apocalyptic number.

530322431 is a deficient number, since it is larger than the sum of its proper divisors (31493569).

530322431 is a wasteful number, since it uses less digits than its factorization.

530322431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 530322431 is about 23028.7305555473. The cubic root of 530322431 is about 809.4313088953.

Adding to 530322431 its reverse (134223035), we get a palindrome (664545466).

The spelling of 530322431 in words is "five hundred thirty million, three hundred twenty-two thousand, four hundred thirty-one".

Divisors: 1 23 89 449 577 2047 10327 13271 39961 51353 259073 919103 1181119 5958679 23057497 530322431