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52479397 = 456711491
BaseRepresentation
bin1100100000110…
…0010110100101
310122202020012101
43020030112211
5101413320042
65112452101
71205032105
oct310142645
9118666171
1052479397
1127694603
12156aa031
13ab45ac9
146d81205
1549196b7
hex320c5a5

52479397 has 4 divisors (see below), whose sum is σ = 52495456. Its totient is φ = 52463340.

The previous prime is 52479359. The next prime is 52479403. The reversal of 52479397 is 79397425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52479397 - 27 = 52479269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52474397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179 + ... + 10312.

It is an arithmetic number, because the mean of its divisors is an integer number (13123864).

Almost surely, 252479397 is an apocalyptic number.

It is an amenable number.

52479397 is a deficient number, since it is larger than the sum of its proper divisors (16059).

52479397 is a wasteful number, since it uses less digits than its factorization.

52479397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16058.

The product of its digits is 476280, while the sum is 46.

The square root of 52479397 is about 7244.2664915090. The cubic root of 52479397 is about 374.3946309718.

The spelling of 52479397 in words is "fifty-two million, four hundred seventy-nine thousand, three hundred ninety-seven".

Divisors: 1 4567 11491 52479397