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54222931 = 77746133
BaseRepresentation
bin1100111011011…
…0000001010011
310210000210212201
43032312001103
5102340113211
65214104031
71225613230
oct316660123
9123023781
1054222931
1128675544
12161ab017
13b306599
1472b6787
154b610c1
hex33b6053

54222931 has 4 divisors (see below), whose sum is σ = 61969072. Its totient is φ = 46476792.

The previous prime is 54222919. The next prime is 54222967. The reversal of 54222931 is 13922245.

54222931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 54222931 - 27 = 54222803 is a prime.

It is a super-2 number, since 2×542229312 = 5880252492461522, which contains 22 as substring.

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 54222931.

It is not an unprimeable number, because it can be changed into a prime (54222031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3873060 + ... + 3873073.

It is an arithmetic number, because the mean of its divisors is an integer number (15492268).

Almost surely, 254222931 is an apocalyptic number.

54222931 is a deficient number, since it is larger than the sum of its proper divisors (7746141).

54222931 is an equidigital number, since it uses as much as digits as its factorization.

54222931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746140.

The product of its digits is 4320, while the sum is 28.

The square root of 54222931 is about 7363.6221385946. The cubic root of 54222931 is about 378.4957405723.

The spelling of 54222931 in words is "fifty-four million, two hundred twenty-two thousand, nine hundred thirty-one".

Divisors: 1 7 7746133 54222931