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54573231 = 318191077
BaseRepresentation
bin1101000000101…
…1100010101111
310210200121101210
43100023202233
5102432320411
65225405503
71231602426
oct320134257
9123617353
1054573231
1128894749
1216339893
13b3c9b6b
1473682bd
154bceca6
hex340b8af

54573231 has 4 divisors (see below), whose sum is σ = 72764312. Its totient is φ = 36382152.

The previous prime is 54573221. The next prime is 54573313. The reversal of 54573231 is 13237545.

54573231 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 not a de Polignac number, because 54573231 - 221 = 52476079 is a prime.

It is a super-2 number, since 2×545732312 = 5956475083558722, 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 (54573221) 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, 9095536 + ... + 9095541.

It is an arithmetic number, because the mean of its divisors is an integer number (18191078).

Almost surely, 254573231 is an apocalyptic number.

54573231 is a deficient number, since it is larger than the sum of its proper divisors (18191081).

54573231 is a wasteful number, since it uses less digits than its factorization.

54573231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191080.

The product of its digits is 12600, while the sum is 30.

The square root of 54573231 is about 7387.3696942823. The cubic root of 54573231 is about 379.3090653380.

The spelling of 54573231 in words is "fifty-four million, five hundred seventy-three thousand, two hundred thirty-one".

Divisors: 1 3 18191077 54573231