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258295254 = 2376149887
BaseRepresentation
bin11110110010101…
…00010111010110
3200000000202110220
433121110113112
51012110422004
641344055210
76254321250
oct1731242726
9600022426
10258295254
1112288a058
1272604506
1341688339
1426438cd0
1517a21dd9
hexf6545d6

258295254 has 16 divisors (see below), whose sum is σ = 590389248. Its totient is φ = 73798632.

The previous prime is 258295241. The next prime is 258295259. The reversal of 258295254 is 452592852.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 6149887 = 258295254 / (2 + 5 + 8 + 2 + 9 + 5 + 2 + 5 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258295259) 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, 3074902 + ... + 3074985.

It is an arithmetic number, because the mean of its divisors is an integer number (36899328).

Almost surely, 2258295254 is an apocalyptic number.

258295254 is an abundant number, since it is smaller than the sum of its proper divisors (332093994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258295254 is a wasteful number, since it uses less digits than its factorization.

258295254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149899.

The product of its digits is 288000, while the sum is 42.

The square root of 258295254 is about 16071.5666317880. The cubic root of 258295254 is about 636.8524278480.

The spelling of 258295254 in words is "two hundred fifty-eight million, two hundred ninety-five thousand, two hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 6149887 12299774 18449661 36899322 43049209 86098418 129147627 258295254