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258460081 = 11229310247
BaseRepresentation
bin11110110011111…
…00100110110001
3200000100010120121
433121330212301
51012131210311
641351410241
76255605635
oct1731744661
9600303517
10258460081
11122991980
1272683981
1341715379
142647cdc5
1517a55b71
hexf67c9b1

258460081 has 8 divisors (see below), whose sum is σ = 282106944. Its totient is φ = 234838320.

The previous prime is 258460079. The next prime is 258460099. The reversal of 258460081 is 180064852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258460081 - 21 = 258460079 is a prime.

It is a super-2 number, since 2×2584600812 = 133603226941053122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258460381) 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 in 7 ways as a sum of consecutive naturals, for example, 20100 + ... + 30346.

It is an arithmetic number, because the mean of its divisors is an integer number (35263368).

Almost surely, 2258460081 is an apocalyptic number.

It is an amenable number.

258460081 is a deficient number, since it is larger than the sum of its proper divisors (23646863).

258460081 is a wasteful number, since it uses less digits than its factorization.

258460081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12551.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 258460081 is about 16076.6937210361. The cubic root of 258460081 is about 636.9878647856.

The spelling of 258460081 in words is "two hundred fifty-eight million, four hundred sixty thousand, eighty-one".

Divisors: 1 11 2293 10247 25223 112717 23496371 258460081