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52904163 = 3132358979
BaseRepresentation
bin1100100111010…
…0000011100011
310200112210212110
43021310003203
5102020413123
65125530403
71211451354
oct311640343
9120483773
1052904163
1127954754
1215873a03
13ac64250
147051d2b
1549a0493
hex32740e3

52904163 has 16 divisors (see below), whose sum is σ = 79269120. Its totient is φ = 31140384.

The previous prime is 52904161. The next prime is 52904171. The reversal of 52904163 is 36140925.

It is not a de Polignac number, because 52904163 - 21 = 52904161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52904163.

It is not an unprimeable number, because it can be changed into a prime (52904161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28593 + ... + 30386.

It is an arithmetic number, because the mean of its divisors is an integer number (4954320).

Almost surely, 252904163 is an apocalyptic number.

52904163 is a deficient number, since it is larger than the sum of its proper divisors (26364957).

52904163 is a wasteful number, since it uses less digits than its factorization.

52904163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59018.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 52904163 is about 7273.5247988853. The cubic root of 52904163 is about 375.4020292836.

It can be divided in two parts, 5290 and 4163, that added together give a triangular number (9453 = T137).

The spelling of 52904163 in words is "fifty-two million, nine hundred four thousand, one hundred sixty-three".

Divisors: 1 3 13 23 39 69 299 897 58979 176937 766727 1356517 2300181 4069551 17634721 52904163