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258930895 = 5232251573
BaseRepresentation
bin11110110111011…
…11100011001111
3200001020001102011
433123233203033
51012241242040
641405442051
76262606366
oct1733574317
9601201364
10258930895
11123183683
1272870327
134184b762
14265627dd
1517aea3ea
hexf6ef8cf

258930895 has 8 divisors (see below), whose sum is σ = 324226656. Its totient is φ = 198138336.

The previous prime is 258930883. The next prime is 258930899. The reversal of 258930895 is 598039852.

258930895 = 23502 + 23512 + ... + 23952.

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 258930895 - 25 = 258930863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258930899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125672 + ... + 1125901.

It is an arithmetic number, because the mean of its divisors is an integer number (40528332).

Almost surely, 2258930895 is an apocalyptic number.

258930895 is a deficient number, since it is larger than the sum of its proper divisors (65295761).

258930895 is a wasteful number, since it uses less digits than its factorization.

258930895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251601.

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 258930895 is about 16091.3298083160. The cubic root of 258930895 is about 637.3744117594.

The spelling of 258930895 in words is "two hundred fifty-eight million, nine hundred thirty thousand, eight hundred ninety-five".

Divisors: 1 5 23 115 2251573 11257865 51786179 258930895