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258140422 = 21953128173
BaseRepresentation
bin11110110001011…
…10100100000110
3122222201220002101
433120232210012
51012040443142
641340502314
76253104661
oct1730564406
9588656071
10258140422
111227937a1
127254a99a
1341632a17
14263d86d8
15179e10b7
hexf62e906

258140422 has 16 divisors (see below), whose sum is σ = 415283760. Its totient is φ = 119968992.

The previous prime is 258140411. The next prime is 258140423. The reversal of 258140422 is 224041852.

258140422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258140423) 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, 62073 + ... + 66100.

It is an arithmetic number, because the mean of its divisors is an integer number (25955235).

Almost surely, 2258140422 is an apocalyptic number.

258140422 is a deficient number, since it is larger than the sum of its proper divisors (157143338).

258140422 is a wasteful number, since it uses less digits than its factorization.

258140422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128247.

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 258140422 is about 16066.7489555292. The cubic root of 258140422 is about 636.7251512234.

The spelling of 258140422 in words is "two hundred fifty-eight million, one hundred forty thousand, four hundred twenty-two".

Divisors: 1 2 19 38 53 106 1007 2014 128173 256346 2435287 4870574 6793169 13586338 129070211 258140422