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256080472 = 23167191677
BaseRepresentation
bin11110100001101…
…11101001011000
3122211212020100221
433100313221120
51011024033342
641224405424
76226435204
oct1720675130
9584766327
10256080472
1112160705a
1271916874
134109120b
142601db04
1517735a67
hexf437a58

256080472 has 16 divisors (see below), whose sum is σ = 483028560. Its totient is φ = 127272864.

The previous prime is 256080463. The next prime is 256080509. The reversal of 256080472 is 274080652.

It is a congruent 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, 94503 + ... + 97174.

It is an arithmetic number, because the mean of its divisors is an integer number (30189285).

Almost surely, 2256080472 is an apocalyptic number.

It is an amenable number.

256080472 is a deficient number, since it is larger than the sum of its proper divisors (226948088).

256080472 is a wasteful number, since it uses less digits than its factorization.

256080472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191850 (or 191846 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 256080472 is about 16002.5145524071. The cubic root of 256080472 is about 635.0269457638.

The spelling of 256080472 in words is "two hundred fifty-six million, eighty thousand, four hundred seventy-two".

Divisors: 1 2 4 8 167 334 668 1336 191677 383354 766708 1533416 32010059 64020118 128040236 256080472