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52430917 = 7116710163
BaseRepresentation
bin1100100000000…
…0100001000101
310122122202200211
43020000201011
5101410242132
65111435421
71204440550
oct310004105
9118582624
1052430917
1127661140
1215685b71
13ab29a16
146d6b697
15490a147
hex3200845

52430917 has 16 divisors (see below), whose sum is σ = 66350592. Its totient is φ = 40241520.

The previous prime is 52430909. The next prime is 52430971. The reversal of 52430917 is 71903425.

It is not a de Polignac number, because 52430917 - 23 = 52430909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52431917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78 + ... + 10240.

It is an arithmetic number, because the mean of its divisors is an integer number (4146912).

Almost surely, 252430917 is an apocalyptic number.

It is an amenable number.

52430917 is a deficient number, since it is larger than the sum of its proper divisors (13919675).

52430917 is a wasteful number, since it uses less digits than its factorization.

52430917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10248.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 52430917 is about 7240.9196239152. The cubic root of 52430917 is about 374.2793079768.

The spelling of 52430917 in words is "fifty-two million, four hundred thirty thousand, nine hundred seventeen".

Divisors: 1 7 11 67 77 469 737 5159 10163 71141 111793 680921 782551 4766447 7490131 52430917