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258422091 = 389967873
BaseRepresentation
bin11110110011100…
…11010101001011
3200000021012110120
433121303111023
51012124001331
641350514323
76255360114
oct1731632513
9600235416
10258422091
11122966384
12726659a3
1341700ca5
142646d20b
1517a49796
hexf67354b

258422091 has 8 divisors (see below), whose sum is σ = 348434640. Its totient is φ = 170345472.

The previous prime is 258422081. The next prime is 258422093. The reversal of 258422091 is 190224852.

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

It is not a de Polignac number, because 258422091 - 215 = 258389323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258422093) 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, 483670 + ... + 484203.

It is an arithmetic number, because the mean of its divisors is an integer number (43554330).

Almost surely, 2258422091 is an apocalyptic number.

258422091 is a deficient number, since it is larger than the sum of its proper divisors (90012549).

258422091 is an equidigital number, since it uses as much as digits as its factorization.

258422091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967965.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 258422091 is about 16075.5121535832. The cubic root of 258422091 is about 636.9566538347.

The spelling of 258422091 in words is "two hundred fifty-eight million, four hundred twenty-two thousand, ninety-one".

Divisors: 1 3 89 267 967873 2903619 86140697 258422091