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258605113 = 1331762753
BaseRepresentation
bin11110110101000…
…00000000111001
3200000121111112011
433122200000321
51012200330423
641354445521
76260051524
oct1732400071
9600544464
10258605113
11122a80938
12727338a1
13417663a0
14264b9bbb
1517a83b0d
hexf6a0039

258605113 has 8 divisors (see below), whose sum is σ = 279380808. Its totient is φ = 237955584.

The previous prime is 258605111. The next prime is 258605141. The reversal of 258605113 is 311506852.

It can be written as a sum of positive squares in 4 ways, for example, as 906304 + 257698809 = 952^2 + 16053^2 .

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 258605113 - 21 = 258605111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258605111) 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, 27256 + ... + 35497.

It is an arithmetic number, because the mean of its divisors is an integer number (34922601).

Almost surely, 2258605113 is an apocalyptic number.

It is an amenable number.

258605113 is a deficient number, since it is larger than the sum of its proper divisors (20775695).

258605113 is a wasteful number, since it uses less digits than its factorization.

258605113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63083.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 258605113 is about 16081.2037173838. The cubic root of 258605113 is about 637.1069887254.

The spelling of 258605113 in words is "two hundred fifty-eight million, six hundred five thousand, one hundred thirteen".

Divisors: 1 13 317 4121 62753 815789 19892701 258605113