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52863839 = 729260413
BaseRepresentation
bin1100100110101…
…0001101011111
310200110202112222
43021222031133
5102013120324
65125015555
71211222660
oct311521537
9120422488
1052863839
1127927426
12158545bb
13ac4baa2
147041367
15499355e
hex326a35f

52863839 has 8 divisors (see below), whose sum is σ = 62499360. Its totient is φ = 43749216.

The previous prime is 52863817. The next prime is 52863847. The reversal of 52863839 is 93836825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52863839 - 224 = 36086623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52863839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52863869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130004 + ... + 130409.

It is an arithmetic number, because the mean of its divisors is an integer number (7812420).

Almost surely, 252863839 is an apocalyptic number.

52863839 is a deficient number, since it is larger than the sum of its proper divisors (9635521).

52863839 is a wasteful number, since it uses less digits than its factorization.

52863839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260449.

The product of its digits is 311040, while the sum is 44.

The square root of 52863839 is about 7270.7522994529. The cubic root of 52863839 is about 375.3066268412.

The spelling of 52863839 in words is "fifty-two million, eight hundred sixty-three thousand, eight hundred thirty-nine".

Divisors: 1 7 29 203 260413 1822891 7551977 52863839