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255420272 = 2479397509
BaseRepresentation
bin11110011100101…
…10011101110000
3122210121200202002
433032112131300
51010341422042
641202313132
76221015342
oct1716263560
9583550662
10255420272
111211a6038
12716587a8
1340bbc873
1425ccb292
1517655132
hexf396770

255420272 has 40 divisors (see below), whose sum is σ = 503390400. Its totient is φ = 125528832.

The previous prime is 255420251. The next prime is 255420337. The reversal of 255420272 is 272024552.

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, 501554 + ... + 502062.

It is an arithmetic number, because the mean of its divisors is an integer number (12584760).

Almost surely, 2255420272 is an apocalyptic number.

It is an amenable number.

255420272 is a deficient number, since it is larger than the sum of its proper divisors (247970128).

255420272 is a wasteful number, since it uses less digits than its factorization.

255420272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 255420272 is about 15981.8732318837. The cubic root of 255420272 is about 634.4807560086.

The spelling of 255420272 in words is "two hundred fifty-five million, four hundred twenty thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 79 158 316 397 509 632 794 1018 1264 1588 2036 3176 4072 6352 8144 31363 40211 62726 80422 125452 160844 202073 250904 321688 404146 501808 643376 808292 1616584 3233168 15963767 31927534 63855068 127710136 255420272