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52938185 = 510587637
BaseRepresentation
bin1100100111110…
…0010111001001
310200121112112112
43021330113021
5102023010220
65130352105
71211652506
oct311742711
9120545475
1052938185
1127978273
121588b635
13ac76891
1470604ad
1549aa5c5
hex327c5c9

52938185 has 4 divisors (see below), whose sum is σ = 63525828. Its totient is φ = 42350544.

The previous prime is 52938181. The next prime is 52938191. The reversal of 52938185 is 58183925.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37319881 + 15618304 = 6109^2 + 3952^2 .

It is a cyclic number.

It is not a de Polignac number, because 52938185 - 22 = 52938181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52938181) 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, 5293814 + ... + 5293823.

It is an arithmetic number, because the mean of its divisors is an integer number (15881457).

Almost surely, 252938185 is an apocalyptic number.

It is an amenable number.

52938185 is a deficient number, since it is larger than the sum of its proper divisors (10587643).

52938185 is a wasteful number, since it uses less digits than its factorization.

52938185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10587642.

The product of its digits is 86400, while the sum is 41.

The square root of 52938185 is about 7275.8631790324. The cubic root of 52938185 is about 375.4824841431.

The spelling of 52938185 in words is "fifty-two million, nine hundred thirty-eight thousand, one hundred eighty-five".

Divisors: 1 5 10587637 52938185