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231840296 = 23191315149
BaseRepresentation
bin11011101000110…
…01101000101000
3121011020201002122
431310121220220
5433322342141
635001050412
75513416142
oct1564315050
9534221078
10231840296
11109960056
1265786a08
1339054b0c
1422b0dc92
151554864b
hexdd19a28

231840296 has 16 divisors (see below), whose sum is σ = 434956500. Its totient is φ = 115851904.

The previous prime is 231840269. The next prime is 231840307. The reversal of 231840296 is 692048132.

231840296 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 209844196 + 21996100 = 14486^2 + 4690^2 .

It is an unprimeable number.

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, 7730 + ... + 22878.

Almost surely, 2231840296 is an apocalyptic number.

It is an amenable number.

231840296 is a deficient number, since it is larger than the sum of its proper divisors (203116204).

231840296 is a wasteful number, since it uses less digits than its factorization.

231840296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17068 (or 17064 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 231840296 is about 15226.3027685647. The cubic root of 231840296 is about 614.3223381497.

The spelling of 231840296 in words is "two hundred thirty-one million, eight hundred forty thousand, two hundred ninety-six".

Divisors: 1 2 4 8 1913 3826 7652 15149 15304 30298 60596 121192 28980037 57960074 115920148 231840296