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55338237 = 328297417
BaseRepresentation
bin1101001100011…
…0010011111101
310212010110210100
43103012103331
5103131310422
65254031313
71241236653
oct323062375
9125113710
1055338237
1129267489
1216648539
13b607126
1474c6dd3
154cd17ac
hex34c64fd

55338237 has 12 divisors (see below), whose sum is σ = 80040220. Its totient is φ = 36842688.

The previous prime is 55338211. The next prime is 55338271. The reversal of 55338237 is 73283355.

It can be written as a sum of positive squares in 2 ways, for example, as 38862756 + 16475481 = 6234^2 + 4059^2 .

It is not a de Polignac number, because 55338237 - 214 = 55321853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55338037) 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, 3753 + ... + 11169.

Almost surely, 255338237 is an apocalyptic number.

It is an amenable number.

55338237 is a deficient number, since it is larger than the sum of its proper divisors (24701983).

55338237 is a wasteful number, since it uses less digits than its factorization.

55338237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252 (or 8249 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 55338237 is about 7438.9674686747. The cubic root of 55338237 is about 381.0732287376.

The spelling of 55338237 in words is "fifty-five million, three hundred thirty-eight thousand, two hundred thirty-seven".

Divisors: 1 3 9 829 2487 7417 7461 22251 66753 6148693 18446079 55338237