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258144214 = 27110491733
BaseRepresentation
bin11110110001011…
…11011111010110
3122222202002021211
433120233133112
51012041103324
641340532034
76253122016
oct1730573726
9588662254
10258144214
11122796629
127255101a
1341634673
14263d9c46
15179e2294
hexf62f7d6

258144214 has 16 divisors (see below), whose sum is σ = 393271200. Its totient is φ = 127059520.

The previous prime is 258144209. The next prime is 258144217. The reversal of 258144214 is 412441852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258144217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148092 + ... + 149824.

It is an arithmetic number, because the mean of its divisors is an integer number (24579450).

Almost surely, 2258144214 is an apocalyptic number.

258144214 is a deficient number, since it is larger than the sum of its proper divisors (135126986).

258144214 is a wasteful number, since it uses less digits than its factorization.

258144214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855.

The product of its digits is 10240, while the sum is 31.

The square root of 258144214 is about 16066.8669627902. The cubic root of 258144214 is about 636.7282689709.

The spelling of 258144214 in words is "two hundred fifty-eight million, one hundred forty-four thousand, two hundred fourteen".

Divisors: 1 2 71 142 1049 1733 2098 3466 74479 123043 148958 246086 1817917 3635834 129072107 258144214