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256200084 = 22347831361
BaseRepresentation
bin11110100010101…
…00110110010100
3122212002022110000
433101110312110
51011041400314
641231131300
76230444010
oct1721246624
9585068400
10256200084
11121688a08
1271973b30
13411037aa
1426051540
151775b209
hexf454d94

256200084 has 120 divisors (see below), whose sum is σ = 775228608. Its totient is φ = 72264960.

The previous prime is 256200083. The next prime is 256200121. The reversal of 256200084 is 480002652.

256200084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256200083) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 187564 + ... + 188924.

Almost surely, 2256200084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256200084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387614304).

256200084 is an abundant number, since it is smaller than the sum of its proper divisors (519028524).

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

256200084 is a wasteful number, since it uses less digits than its factorization.

256200084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 256200084 is about 16006.2514037485. The cubic root of 256200084 is about 635.1258014338.

The spelling of 256200084 in words is "two hundred fifty-six million, two hundred thousand, eighty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 83 84 108 126 162 166 189 249 252 324 332 378 498 567 581 747 756 996 1134 1162 1361 1494 1743 2241 2268 2324 2722 2988 3486 4083 4482 5229 5444 6723 6972 8166 8964 9527 10458 12249 13446 15687 16332 19054 20916 24498 26892 28581 31374 36747 38108 47061 48996 57162 62748 73494 85743 94122 110241 112963 114324 146988 171486 188244 220482 225926 257229 338889 342972 440964 451852 514458 677778 771687 790741 1016667 1028916 1355556 1543374 1581482 2033334 2372223 3050001 3086748 3162964 4066668 4744446 6100002 7116669 9150003 9488892 12200004 14233338 18300006 21350007 28466676 36600012 42700014 64050021 85400028 128100042 256200084