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258242095 = 5106148679
BaseRepresentation
bin11110110010001…
…11011000101111
3122222221001120001
433121013120233
51012102221340
641343005131
76254010256
oct1731073057
9588831501
10258242095
11122853121
12725997a7
134166a097
142642379d
1517a1129a
hexf64762f

258242095 has 8 divisors (see below), whose sum is σ = 310188960. Its totient is φ = 206394720.

The previous prime is 258242093. The next prime is 258242107. The reversal of 258242095 is 590242852.

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

It is not a de Polignac number, because 258242095 - 21 = 258242093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258242093) 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, 19035 + ... + 29644.

It is an arithmetic number, because the mean of its divisors is an integer number (38773620).

Almost surely, 2258242095 is an apocalyptic number.

258242095 is a deficient number, since it is larger than the sum of its proper divisors (51946865).

258242095 is a wasteful number, since it uses less digits than its factorization.

258242095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49745.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 258242095 is about 16069.9127253386. The cubic root of 258242095 is about 636.8087352643.

The spelling of 258242095 in words is "two hundred fifty-eight million, two hundred forty-two thousand, ninety-five".

Divisors: 1 5 1061 5305 48679 243395 51648419 258242095