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256025106 = 232107307433
BaseRepresentation
bin11110100001010…
…10001000010010
3122211202102102100
433100222020102
51011020300411
641223301230
76226114611
oct1720521022
9584672370
10256025106
111215794a7
12718aa816
1341071c5c
1426007878
1517724456
hexf42a212

256025106 has 48 divisors (see below), whose sum is σ = 563026464. Its totient is φ = 84074112.

The previous prime is 256025093. The next prime is 256025111. The reversal of 256025106 is 601520652.

256025106 is a `hidden beast` number, since 2 + 5 + 602 + 51 + 0 + 6 = 666.

It is a super-2 number, since 2×2560251062 = 131097709804622472, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 256025106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591066 + ... + 591498.

It is an arithmetic number, because the mean of its divisors is an integer number (11729718).

Almost surely, 2256025106 is an apocalyptic number.

256025106 is an abundant number, since it is smaller than the sum of its proper divisors (307001358).

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

256025106 is a wasteful number, since it uses less digits than its factorization.

256025106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 256025106 is about 16000.7845432654. The cubic root of 256025106 is about 634.9811770311.

Adding to 256025106 its reverse (601520652), we get a palindrome (857545758).

The spelling of 256025106 in words is "two hundred fifty-six million, twenty-five thousand, one hundred six".

Divisors: 1 2 3 6 9 18 107 214 307 321 433 614 642 866 921 963 1299 1842 1926 2598 2763 3897 5526 7794 32849 46331 65698 92662 98547 132931 138993 197094 265862 277986 295641 398793 416979 591282 797586 833958 1196379 2392758 14223617 28447234 42670851 85341702 128012553 256025106