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255228102 = 232192371457
BaseRepresentation
bin11110011011001…
…11100011000110
3122210020221010200
433031213203012
51010314244402
641154231330
76216255153
oct1715474306
9583227120
10255228102
11121084718
1271585546
1340b5325c
1425c7b22a
151761821c
hexf3678c6

255228102 has 96 divisors (see below), whose sum is σ = 617310720. Its totient is φ = 75841920.

The previous prime is 255228097. The next prime is 255228119. The reversal of 255228102 is 201822552.

255228102 is a `hidden beast` number, since 2 + 552 + 2 + 8 + 102 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 558258 + ... + 558714.

It is an arithmetic number, because the mean of its divisors is an integer number (6430320).

Almost surely, 2255228102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255228102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308655360).

255228102 is an abundant number, since it is smaller than the sum of its proper divisors (362082618).

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

255228102 is a wasteful number, since it uses less digits than its factorization.

255228102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 255228102 is about 15975.8599768526. The cubic root of 255228102 is about 634.3215951127.

The spelling of 255228102 in words is "two hundred fifty-five million, two hundred twenty-eight thousand, one hundred two".

Divisors: 1 2 3 6 9 18 19 23 38 46 57 69 71 114 138 142 171 207 213 342 414 426 437 457 639 874 914 1278 1311 1349 1371 1633 2622 2698 2742 3266 3933 4047 4113 4899 7866 8094 8226 8683 9798 10511 12141 14697 17366 21022 24282 26049 29394 31027 31533 32447 52098 62054 63066 64894 78147 93081 94599 97341 156294 186162 189198 194682 199709 279243 292023 399418 558486 584046 599127 616493 746281 1198254 1232986 1492562 1797381 1849479 2238843 3594762 3698958 4477686 5548437 6716529 11096874 13433058 14179339 28358678 42538017 85076034 127614051 255228102