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231014305 = 546202861
BaseRepresentation
bin11011100010011…
…11111110100001
3121002200202001101
431301033332201
5433114424210
634531234401
75503406044
oct1561177641
9532622041
10231014305
11109446515
1265448a01
1338b25b72
1422976c5b
1515433a3a
hexdc4ffa1

231014305 has 4 divisors (see below), whose sum is σ = 277217172. Its totient is φ = 184811440.

The previous prime is 231014299. The next prime is 231014317. The reversal of 231014305 is 503410132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 171400464 + 59613841 = 13092^2 + 7721^2 .

It is not a de Polignac number, because 231014305 - 23 = 231014297 is a prime.

It is a super-2 number, since 2×2310143052 = 106735218229266050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23101426 + ... + 23101435.

It is an arithmetic number, because the mean of its divisors is an integer number (69304293).

Almost surely, 2231014305 is an apocalyptic number.

It is an amenable number.

231014305 is a deficient number, since it is larger than the sum of its proper divisors (46202867).

231014305 is an equidigital number, since it uses as much as digits as its factorization.

231014305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46202866.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 231014305 is about 15199.1547462351. The cubic root of 231014305 is about 613.5919092907.

Adding to 231014305 its reverse (503410132), we get a palindrome (734424437).

The spelling of 231014305 in words is "two hundred thirty-one million, fourteen thousand, three hundred five".

Divisors: 1 5 46202861 231014305