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255080705 = 5112421621
BaseRepresentation
bin11110011010000…
…11100100000001
3122202222102221112
433031003210001
51010300040310
641151133105
76215102345
oct1715034401
9582872845
10255080705
11120a93a00
1271514195
1340b01139
1425c3d625
15175d9705
hexf343901

255080705 has 12 divisors (see below), whose sum is σ = 336454356. Its totient is φ = 185512800.

The previous prime is 255080677. The next prime is 255080731. The reversal of 255080705 is 507080552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83156161 + 171924544 = 9119^2 + 13112^2 .

It is not a de Polignac number, because 255080705 - 26 = 255080641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210206 + ... + 211415.

It is an arithmetic number, because the mean of its divisors is an integer number (28037863).

Almost surely, 2255080705 is an apocalyptic number.

It is an amenable number.

255080705 is a deficient number, since it is larger than the sum of its proper divisors (81373651).

255080705 is a wasteful number, since it uses less digits than its factorization.

255080705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421648 (or 421637 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 255080705 is about 15971.2461943331. The cubic root of 255080705 is about 634.1994623960.

The spelling of 255080705 in words is "two hundred fifty-five million, eighty thousand, seven hundred five".

Divisors: 1 5 11 55 121 605 421621 2108105 4637831 23189155 51016141 255080705