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54983231 is a prime number
BaseRepresentation
bin1101000110111…
…1101000111111
310211110102210222
43101233220333
5103033430411
65242251555
71235230652
oct321575077
9124412728
1054983231
1129044796
12164b6bbb
13b511674
147433899
154c614db
hex346fa3f

54983231 has 2 divisors, whose sum is σ = 54983232. Its totient is φ = 54983230.

The previous prime is 54983213. The next prime is 54983237. The reversal of 54983231 is 13238945.

Together with previous prime (54983213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54983231 - 26 = 54983167 is a prime.

It is a super-2 number, since 2×549832312 = 6046311382398722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 54983191 and 54983200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54983237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27491615 + 27491616.

It is an arithmetic number, because the mean of its divisors is an integer number (27491616).

Almost surely, 254983231 is an apocalyptic number.

54983231 is a deficient number, since it is larger than the sum of its proper divisors (1).

54983231 is an equidigital number, since it uses as much as digits as its factorization.

54983231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 54983231 is about 7415.0678351584. The cubic root of 54983231 is about 380.2565926264.

The spelling of 54983231 in words is "fifty-four million, nine hundred eighty-three thousand, two hundred thirty-one".