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54740281 is a prime number
BaseRepresentation
bin1101000011010…
…0010100111001
310211000002112211
43100310110321
5103003142111
65233135121
71233166441
oct320642471
9124002484
1054740281
1128999202
12163ba4a1
13b457bcb
1473ad121
154c14521
hex3434539

54740281 has 2 divisors, whose sum is σ = 54740282. Its totient is φ = 54740280.

The previous prime is 54740239. The next prime is 54740297. The reversal of 54740281 is 18204745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37100281 + 17640000 = 6091^2 + 4200^2 .

It is a cyclic number.

It is not a de Polignac number, because 54740281 - 217 = 54609209 is a prime.

It is a super-2 number, since 2×547402812 = 5992996727917922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54740681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27370140 + 27370141.

It is an arithmetic number, because the mean of its divisors is an integer number (27370141).

Almost surely, 254740281 is an apocalyptic number.

It is an amenable number.

54740281 is a deficient number, since it is larger than the sum of its proper divisors (1).

54740281 is an equidigital number, since it uses as much as digits as its factorization.

54740281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 54740281 is about 7398.6675151678. The cubic root of 54740281 is about 379.6956958981.

The spelling of 54740281 in words is "fifty-four million, seven hundred forty thousand, two hundred eighty-one".