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52332237 = 35215359
BaseRepresentation
bin1100011110100…
…0011011001101
310122110202100000
43013220123031
5101344112422
65105354513
71203550056
oct307503315
9118422300
1052332237
11275a3a91
1215638a39
13aac3b29
146d4372d
1548dacac
hex31e86cd

52332237 has 12 divisors (see below), whose sum is σ = 78391040. Its totient is φ = 34887996.

The previous prime is 52332223. The next prime is 52332257. The reversal of 52332237 is 73223325.

It is not a de Polignac number, because 52332237 - 26 = 52332173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 52332237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52332257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107437 + ... + 107922.

Almost surely, 252332237 is an apocalyptic number.

It is an amenable number.

52332237 is a deficient number, since it is larger than the sum of its proper divisors (26058803).

52332237 is an equidigital number, since it uses as much as digits as its factorization.

52332237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215374 (or 215362 counting only the distinct ones).

The product of its digits is 7560, while the sum is 27.

The square root of 52332237 is about 7234.1023631132. The cubic root of 52332237 is about 374.0443506938.

The spelling of 52332237 in words is "fifty-two million, three hundred thirty-two thousand, two hundred thirty-seven".

Divisors: 1 3 9 27 81 243 215359 646077 1938231 5814693 17444079 52332237