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255563030 = 25157162779
BaseRepresentation
bin11110011101110…
…01010100010110
3122210212221120102
433032321110112
51010411004110
641205334102
76222151502
oct1716712426
9583787512
10255563030
11121293318
1271707332
1340c3c838
1425d27302
15176825a5
hexf3b9516

255563030 has 16 divisors (see below), whose sum is σ = 462946320. Its totient is φ = 101573472.

The previous prime is 255563003. The next prime is 255563081. The reversal of 255563030 is 30365552.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 255562984 and 255563002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79820 + ... + 82959.

It is an arithmetic number, because the mean of its divisors is an integer number (28934145).

Almost surely, 2255563030 is an apocalyptic number.

255563030 is a deficient number, since it is larger than the sum of its proper divisors (207383290).

255563030 is a wasteful number, since it uses less digits than its factorization.

255563030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162943.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 255563030 is about 15986.3388554103. The cubic root of 255563030 is about 634.5989407470.

The spelling of 255563030 in words is "two hundred fifty-five million, five hundred sixty-three thousand, thirty".

Divisors: 1 2 5 10 157 314 785 1570 162779 325558 813895 1627790 25556303 51112606 127781515 255563030