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230095278 = 23272260879
BaseRepresentation
bin11011011011011…
…11100110101110
3121000222001101100
431231233212232
5432401022103
634455423530
75462530500
oct1555574656
9530861340
10230095278
11108978a96
1265084ba6
133889376a
14227b7d70
15153015a3
hexdb6f9ae

230095278 has 36 divisors (see below), whose sum is σ = 579936240. Its totient is φ = 65741256.

The previous prime is 230095277. The next prime is 230095303. The reversal of 230095278 is 872590032.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230095273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 129558 + ... + 131321.

It is an arithmetic number, because the mean of its divisors is an integer number (16109340).

Almost surely, 2230095278 is an apocalyptic number.

230095278 is an abundant number, since it is smaller than the sum of its proper divisors (349840962).

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

230095278 is a wasteful number, since it uses less digits than its factorization.

230095278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260901 (or 260891 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 230095278 is about 15168.8917854931. The cubic root of 230095278 is about 612.7771589192. Note that the first 3 decimals are identical.

The spelling of 230095278 in words is "two hundred thirty million, ninety-five thousand, two hundred seventy-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 260879 521758 782637 1565274 1826153 2347911 3652306 4695822 5478459 10956918 12783071 16435377 25566142 32870754 38349213 76698426 115047639 230095278