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258096281 is a prime number
BaseRepresentation
bin11110110001000…
…11110010011001
3122222122122112112
433120203302121
51012033040111
641335522105
76252532202
oct1730436231
9588578475
10258096281
11122763613
1272529335
13416188c1
14263c65a9
15179d2e8b
hexf623c99

258096281 has 2 divisors, whose sum is σ = 258096282. Its totient is φ = 258096280.

The previous prime is 258096253. The next prime is 258096287. The reversal of 258096281 is 182690852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131308681 + 126787600 = 11459^2 + 11260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-258096281 is a prime.

It is a super-2 number, since 2×2580962812 = 133227380532061922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (258096287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129048140 + 129048141.

It is an arithmetic number, because the mean of its divisors is an integer number (129048141).

Almost surely, 2258096281 is an apocalyptic number.

It is an amenable number.

258096281 is a deficient number, since it is larger than the sum of its proper divisors (1).

258096281 is an equidigital number, since it uses as much as digits as its factorization.

258096281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 258096281 is about 16065.3752212639. The cubic root of 258096281 is about 636.6888566531.

The spelling of 258096281 in words is "two hundred fifty-eight million, ninety-six thousand, two hundred eighty-one".