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58073281 = 726119429
BaseRepresentation
bin1101110110001…
…0000011000001
311001021102120021
43131202003001
5104331321111
65432413441
71303420600
oct335420301
9131242507
1058073281
112a865352
1217547281
13c053cb6
1479d9a37
155171d71
hex37620c1

58073281 has 12 divisors (see below), whose sum is σ = 68665620. Its totient is φ = 48958560.

The previous prime is 58073237. The next prime is 58073297. The reversal of 58073281 is 18237085.

It can be written as a sum of positive squares in 2 ways, for example, as 919681 + 57153600 = 959^2 + 7560^2 .

It is not a de Polignac number, because 58073281 - 219 = 57548993 is a prime.

It is a super-2 number, since 2×580732812 = 6745011932209922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58073231) 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 11 ways as a sum of consecutive naturals, for example, 6726 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (5722135).

Almost surely, 258073281 is an apocalyptic number.

It is an amenable number.

58073281 is a deficient number, since it is larger than the sum of its proper divisors (10592339).

58073281 is a wasteful number, since it uses less digits than its factorization.

58073281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19504 (or 19497 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 58073281 is about 7620.5827205011. The cubic root of 58073281 is about 387.2506194244.

The spelling of 58073281 in words is "fifty-eight million, seventy-three thousand, two hundred eighty-one".

Divisors: 1 7 49 61 427 2989 19429 136003 952021 1185169 8296183 58073281