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255402552 = 23331973539
BaseRepresentation
bin11110011100100…
…10001000111000
3122210120210102210
433032102020320
51010340340202
641202055120
76220612566
oct1716221070
9583523383
10255402552
11121193799
127164a4a0
1340bb4792
1425cc4a36
151764ec6c
hexf392238

255402552 has 64 divisors (see below), whose sum is σ = 666086400. Its totient is φ = 81515520.

The previous prime is 255402551. The next prime is 255402599. The reversal of 255402552 is 255204552.

It is a super-2 number, since 2×2554025522 = 130460927136225408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255402551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70399 + ... + 73937.

It is an arithmetic number, because the mean of its divisors is an integer number (10407600).

Almost surely, 2255402552 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 255402552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333043200).

255402552 is an abundant number, since it is smaller than the sum of its proper divisors (410683848).

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

255402552 is a wasteful number, since it uses less digits than its factorization.

255402552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676 (or 3672 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 255402552 is about 15981.3188442006. The cubic root of 255402552 is about 634.4660831208.

The spelling of 255402552 in words is "two hundred fifty-five million, four hundred two thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 97 124 186 194 248 291 372 388 582 744 776 1164 2328 3007 3539 6014 7078 9021 10617 12028 14156 18042 21234 24056 28312 36084 42468 72168 84936 109709 219418 329127 343283 438836 658254 686566 877672 1029849 1316508 1373132 2059698 2633016 2746264 4119396 8238792 10641773 21283546 31925319 42567092 63850638 85134184 127701276 255402552