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231150275 = 5217543883
BaseRepresentation
bin11011100011100…
…01001011000011
3121002221122120022
431301301023003
5433133302100
634534204055
75504513336
oct1561611303
9532848508
10231150275
11109529694
12654b362b
1338b72a15
14229b061d
151545de85
hexdc712c3

231150275 has 12 divisors (see below), whose sum is σ = 303487272. Its totient is φ = 174042240.

The previous prime is 231150247. The next prime is 231150341. The reversal of 231150275 is 572051132.

231150275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231150275 - 28 = 231150019 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, 271517 + ... + 272366.

It is an arithmetic number, because the mean of its divisors is an integer number (25290606).

Almost surely, 2231150275 is an apocalyptic number.

231150275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231150275 is a deficient number, since it is larger than the sum of its proper divisors (72336997).

231150275 is a wasteful number, since it uses less digits than its factorization.

231150275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543910 (or 543905 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 231150275 is about 15203.6270343626. The cubic root of 231150275 is about 613.7122679685.

The spelling of 231150275 in words is "two hundred thirty-one million, one hundred fifty thousand, two hundred seventy-five".

Divisors: 1 5 17 25 85 425 543883 2719415 9246011 13597075 46230055 231150275