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256850328 = 23371528871
BaseRepresentation
bin11110100111100…
…11100110011000
3122220022100102010
433103303212120
51011223202303
641253105520
76236122530
oct1723634630
9586270363
10256850328
11121a924a9
12720282a0
13412a0757
14261804c0
1517838c03
hexf4f3998

256850328 has 32 divisors (see below), whose sum is σ = 733858560. Its totient is φ = 73385760.

The previous prime is 256850327. The next prime is 256850339. The reversal of 256850328 is 823058652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256850327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764268 + ... + 764603.

It is an arithmetic number, because the mean of its divisors is an integer number (22933080).

Almost surely, 2256850328 is an apocalyptic number.

256850328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

256850328 is an abundant number, since it is smaller than the sum of its proper divisors (477008232).

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

256850328 is a wasteful number, since it uses less digits than its factorization.

256850328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528887 (or 1528883 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 256850328 is about 16026.5507206011. The cubic root of 256850328 is about 635.6626706857.

The spelling of 256850328 in words is "two hundred fifty-six million, eight hundred fifty thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 1528871 3057742 4586613 6115484 9173226 10702097 12230968 18346452 21404194 32106291 36692904 42808388 64212582 85616776 128425164 256850328