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258490804 = 2211132915583
BaseRepresentation
bin11110110100001…
…00000110110100
3200000101200201111
433122010012310
51012133201204
641352204404
76256064335
oct1732040664
9600350644
10258490804
11122a02a70
1272699704
1341726350
142648a28c
1517a5ed04
hexf6841b4

258490804 has 48 divisors (see below), whose sum is σ = 549803520. Its totient is φ = 104711040.

The previous prime is 258490787. The next prime is 258490811. The reversal of 258490804 is 408094852.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8797 + ... + 24379.

It is an arithmetic number, because the mean of its divisors is an integer number (11454240).

Almost surely, 2258490804 is an apocalyptic number.

It is an amenable number.

258490804 is an abundant number, since it is smaller than the sum of its proper divisors (291312716).

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

258490804 is a wasteful number, since it uses less digits than its factorization.

258490804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15640 (or 15638 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 258490804 is about 16077.6492062739. The cubic root of 258490804 is about 637.0131032450.

The spelling of 258490804 in words is "two hundred fifty-eight million, four hundred ninety thousand, eight hundred four".

Divisors: 1 2 4 11 13 22 26 29 44 52 58 116 143 286 319 377 572 638 754 1276 1508 4147 8294 15583 16588 31166 62332 171413 202579 342826 405158 451907 685652 810316 903814 1807628 2228369 4456738 4970977 5874791 8913476 9941954 11749582 19883908 23499164 64622701 129245402 258490804