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52672457 = 82763691
BaseRepresentation
bin1100100011101…
…1011111001001
310200010001000202
43020323133021
5101441004312
65120541545
71206465005
oct310733711
9120101022
1052672457
1127806662
12157818b5
13abb2946
146dd1705
1549569c2
hex323b7c9

52672457 has 4 divisors (see below), whose sum is σ = 52736976. Its totient is φ = 52607940.

The previous prime is 52672447. The next prime is 52672471. The reversal of 52672457 is 75427625.

It is a happy number.

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 52672457 - 218 = 52410313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52672457.

It is not an unprimeable number, because it can be changed into a prime (52672447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31019 + ... + 32672.

It is an arithmetic number, because the mean of its divisors is an integer number (13184244).

Almost surely, 252672457 is an apocalyptic number.

It is an amenable number.

52672457 is a deficient number, since it is larger than the sum of its proper divisors (64519).

52672457 is an equidigital number, since it uses as much as digits as its factorization.

52672457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64518.

The product of its digits is 117600, while the sum is 38.

The square root of 52672457 is about 7257.5792796221. The cubic root of 52672457 is about 374.8531739272.

The spelling of 52672457 in words is "fifty-two million, six hundred seventy-two thousand, four hundred fifty-seven".

Divisors: 1 827 63691 52672457