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256055130 = 232510512707
BaseRepresentation
bin11110100001100…
…01011101011010
3122211210221121100
433100301131122
51011022231010
641224052230
76226301262
oct1720613532
9584727540
10256055130
1112159a011
1271904076
1341082816
14260147a2
151772d2c0
hexf43175a

256055130 has 48 divisors (see below), whose sum is σ = 666622944. Its totient is φ = 68191200.

The previous prime is 256055119. The next prime is 256055141. The reversal of 256055130 is 31550652.

256055130 is a `hidden beast` number, since 2 + 5 + 605 + 51 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (256055119) and next prime (256055141).

It is a junction number, because it is equal to n+sod(n) for n = 256055094 and 256055103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93237 + ... + 95943.

It is an arithmetic number, because the mean of its divisors is an integer number (13887978).

Almost surely, 2256055130 is an apocalyptic number.

256055130 is an abundant number, since it is smaller than the sum of its proper divisors (410567814).

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

256055130 is a wasteful number, since it uses less digits than its factorization.

256055130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771 (or 3768 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 256055130 is about 16001.7227197574. The cubic root of 256055130 is about 635.0059974220.

The spelling of 256055130 in words is "two hundred fifty-six million, fifty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1051 2102 2707 3153 5255 5414 6306 8121 9459 10510 13535 15765 16242 18918 24363 27070 31530 40605 47295 48726 81210 94590 121815 243630 2845057 5690114 8535171 14225285 17070342 25605513 28450570 42675855 51211026 85351710 128027565 256055130