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231740083 = 263881141
BaseRepresentation
bin11011101000000…
…01001010110011
3121011001121122001
431310001022303
5433311140313
634554554431
75512521031
oct1564011263
9534047561
10231740083
111098a1833
1265738a17
133901b313
1422ac5551
1515528add
hexdd012b3

231740083 has 4 divisors (see below), whose sum is σ = 232621488. Its totient is φ = 230858680.

The previous prime is 231740071. The next prime is 231740099. The reversal of 231740083 is 380047132.

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

It is a cyclic number.

It is not a de Polignac number, because 231740083 - 225 = 198185651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231740183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440308 + ... + 440833.

It is an arithmetic number, because the mean of its divisors is an integer number (58155372).

Almost surely, 2231740083 is an apocalyptic number.

231740083 is a deficient number, since it is larger than the sum of its proper divisors (881405).

231740083 is an equidigital number, since it uses as much as digits as its factorization.

231740083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881404.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 231740083 is about 15223.0116271387. The cubic root of 231740083 is about 614.2338117547.

The spelling of 231740083 in words is "two hundred thirty-one million, seven hundred forty thousand, eighty-three".

Divisors: 1 263 881141 231740083