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275255305 = 5134234697
BaseRepresentation
bin10000011010000…
…001000000001001
3201011221102021221
4100122001000021
51030431132210
643151402041
76551426413
oct2032010011
9634842257
10275255305
11131413426
1278223321
1345045b80
14287b19b3
15192721da
hex10681009

275255305 has 8 divisors (see below), whose sum is σ = 355714632. Its totient is φ = 203265408.

The previous prime is 275255291. The next prime is 275255311. The reversal of 275255305 is 503552572.

It can be written as a sum of positive squares in 4 ways, for example, as 36614601 + 238640704 = 6051^2 + 15448^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275255305 - 211 = 275253257 is a prime.

It is a super-3 number, since 3×2752553053 (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2117284 + ... + 2117413.

It is an arithmetic number, because the mean of its divisors is an integer number (44464329).

Almost surely, 2275255305 is an apocalyptic number.

It is an amenable number.

275255305 is a deficient number, since it is larger than the sum of its proper divisors (80459327).

275255305 is a wasteful number, since it uses less digits than its factorization.

275255305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234715.

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 275255305 is about 16590.8199013792. The cubic root of 275255305 is about 650.4969020904.

The spelling of 275255305 in words is "two hundred seventy-five million, two hundred fifty-five thousand, three hundred five".

Divisors: 1 5 13 65 4234697 21173485 55051061 275255305