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255215068 = 221918118553
BaseRepresentation
bin11110011011001…
…00010111011100
3122210020021020221
433031210113130
51010313340233
641154051124
76216202153
oct1715442734
9583207227
10255215068
11121075949
1271579aa4
1340b4a344
1425c7659a
151761442d
hexf3645dc

255215068 has 24 divisors (see below), whose sum is σ = 472755920. Its totient is φ = 120216960.

The previous prime is 255215057. The next prime is 255215099. The reversal of 255215068 is 860512552.

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, 4480 + ... + 23032.

Almost surely, 2255215068 is an apocalyptic number.

It is an amenable number.

255215068 is a deficient number, since it is larger than the sum of its proper divisors (217540852).

255215068 is a wasteful number, since it uses less digits than its factorization.

255215068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18757 (or 18755 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 255215068 is about 15975.4520436825. The cubic root of 255215068 is about 634.3107970745.

The spelling of 255215068 in words is "two hundred fifty-five million, two hundred fifteen thousand, sixty-eight".

Divisors: 1 2 4 19 38 76 181 362 724 3439 6878 13756 18553 37106 74212 352507 705014 1410028 3358093 6716186 13432372 63803767 127607534 255215068