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255142250 = 2531192779
BaseRepresentation
bin11110011010100…
…10100101101010
3122210002120100222
433031102211222
51010304023000
641152330042
76215446646
oct1715224552
9583076328
10255142250
11121026170
1271543922
1340b2315c
1425c57c26
15175eca85
hexf35296a

255142250 has 32 divisors (see below), whose sum is σ = 521052480. Its totient is φ = 92778000.

The previous prime is 255142229. The next prime is 255142291. The reversal of 255142250 is 52241552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43640 + ... + 49139.

It is an arithmetic number, because the mean of its divisors is an integer number (16282890).

Almost surely, 2255142250 is an apocalyptic number.

255142250 is an abundant number, since it is smaller than the sum of its proper divisors (265910230).

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

255142250 is a wasteful number, since it uses less digits than its factorization.

255142250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92807 (or 92797 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 255142250 is about 15973.1728219537. The cubic root of 255142250 is about 634.2504641200.

The spelling of 255142250 in words is "two hundred fifty-five million, one hundred forty-two thousand, two hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 125 250 275 550 1375 2750 92779 185558 463895 927790 1020569 2041138 2319475 4638950 5102845 10205690 11597375 23194750 25514225 51028450 127571125 255142250