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258260242 = 2886714563
BaseRepresentation
bin11110110010010…
…11110100010010
3122222221222110011
433121023310102
51012103311432
641343225134
76254114212
oct1731136422
9588858404
10258260242
11122865819
12725a81aa
1341675416
142642a242
1517a16847
hexf64bd12

258260242 has 8 divisors (see below), whose sum is σ = 387460656. Its totient is φ = 129106692.

The previous prime is 258260239. The next prime is 258260263. The reversal of 258260242 is 242062852.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10453 + ... + 25015.

It is an arithmetic number, because the mean of its divisors is an integer number (48432582).

Almost surely, 2258260242 is an apocalyptic number.

258260242 is a deficient number, since it is larger than the sum of its proper divisors (129200414).

258260242 is a wasteful number, since it uses less digits than its factorization.

258260242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23432.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 258260242 is about 16070.4773420082. The cubic root of 258260242 is about 636.8236513678.

The spelling of 258260242 in words is "two hundred fifty-eight million, two hundred sixty thousand, two hundred forty-two".

Divisors: 1 2 8867 14563 17734 29126 129130121 258260242