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54002231 = 197274123
BaseRepresentation
bin1100111000000…
…0001000110111
310202121121010122
43032000020313
5102311032411
65205242155
71224003623
oct316001067
9122547118
1054002231
1128534748
121610335b
13b259caa
14725a183
154b1a9db
hex3380237

54002231 has 4 divisors (see below), whose sum is σ = 54276552. Its totient is φ = 53727912.

The previous prime is 54002227. The next prime is 54002233. The reversal of 54002231 is 13220045.

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 54002231 - 22 = 54002227 is a prime.

It is a super-2 number, since 2×540022312 = 5832481905954722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54002233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136865 + ... + 137258.

It is an arithmetic number, because the mean of its divisors is an integer number (13569138).

Almost surely, 254002231 is an apocalyptic number.

54002231 is a deficient number, since it is larger than the sum of its proper divisors (274321).

54002231 is a wasteful number, since it uses less digits than its factorization.

54002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274320.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 54002231 is about 7348.6210271043. The cubic root of 54002231 is about 377.9815202373.

Adding to 54002231 its reverse (13220045), we get a palindrome (67222276).

The spelling of 54002231 in words is "fifty-four million, two thousand, two hundred thirty-one".

Divisors: 1 197 274123 54002231