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52801339 = 311703269
BaseRepresentation
bin1100100101101…
…0111100111011
310200100120211011
43021122330323
5102004120324
65123414351
71210542523
oct311327473
9120316734
1052801339
1127894478
12158243b7
13ac294c6
147026683
15497ec94
hex325af3b

52801339 has 4 divisors (see below), whose sum is σ = 54504640. Its totient is φ = 51098040.

The previous prime is 52801327. The next prime is 52801349. The reversal of 52801339 is 93310825.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52801339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1703269 = 52801339 / (5 + 2 + 8 + 0 + 1 + 3 + 3 + 9).

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 52801339.

It is not an unprimeable number, because it can be changed into a prime (52801349) 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, 851604 + ... + 851665.

It is an arithmetic number, because the mean of its divisors is an integer number (13626160).

Almost surely, 252801339 is an apocalyptic number.

52801339 is a deficient number, since it is larger than the sum of its proper divisors (1703301).

52801339 is a wasteful number, since it uses less digits than its factorization.

52801339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703300.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 52801339 is about 7266.4529861549. The cubic root of 52801339 is about 375.1586623420.

The spelling of 52801339 in words is "fifty-two million, eight hundred one thousand, three hundred thirty-nine".

Divisors: 1 31 1703269 52801339