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258025093 = 2918149157
BaseRepresentation
bin11110110000100…
…10011010000101
3122222112000212221
433120102122011
51012023300333
641334212341
76252114514
oct1730223205
9588460787
10258025093
11122715087
12724b40b1
13415c2391
14263a867b
15179bbd2d
hexf612685

258025093 has 8 divisors (see below), whose sum is σ = 268402680. Its totient is φ = 247746240.

The previous prime is 258025057. The next prime is 258025129. The reversal of 258025093 is 390520852.

It is an interprime number because it is at equal distance from previous prime (258025057) and next prime (258025129).

It can be written as a sum of positive squares in 4 ways, for example, as 3526884 + 254498209 = 1878^2 + 15953^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 258025093 - 213 = 258016901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258025393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19330 + ... + 29827.

It is an arithmetic number, because the mean of its divisors is an integer number (33550335).

Almost surely, 2258025093 is an apocalyptic number.

It is an amenable number.

258025093 is a deficient number, since it is larger than the sum of its proper divisors (10377587).

258025093 is a wasteful number, since it uses less digits than its factorization.

258025093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49367.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 258025093 is about 16063.1594961888. The cubic root of 258025093 is about 636.6303141925.

The spelling of 258025093 in words is "two hundred fifty-eight million, twenty-five thousand, ninety-three".

Divisors: 1 29 181 5249 49157 1425553 8897417 258025093