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258316492 = 2279225589
BaseRepresentation
bin11110110010110…
…01100011001100
3200000001211121111
433121121203030
51012112111432
641344341404
76254440210
oct1731314314
9600054544
10258316492
111228a4005
1272614864
1341694bc5
1426442940
1517a28347
hexf6598cc

258316492 has 12 divisors (see below), whose sum is σ = 516633040. Its totient is φ = 110707056.

The previous prime is 258316477. The next prime is 258316561. The reversal of 258316492 is 294613852.

258316492 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4612767 + ... + 4612822.

Almost surely, 2258316492 is an apocalyptic number.

It is an amenable number.

258316492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258316492 is a wasteful number, since it uses less digits than its factorization.

258316492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225600 (or 9225598 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 258316492 is about 16072.2273503084. The cubic root of 258316492 is about 636.8698821643.

It can be divided in two parts, 25831 and 6492, that added together give a palindrome (32323).

The spelling of 258316492 in words is "two hundred fifty-eight million, three hundred sixteen thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 9225589 18451178 36902356 64579123 129158246 258316492