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2203230431 = 4351237917
BaseRepresentation
bin1000001101010010…
…1010000011011111
312200112202200222002
42003110222003133
514003011333211
61002342512515
7105412102223
oct20324520337
95615680862
102203230431
11a307366a6
12515a3573b
132915c2b5c
1416c87c783
15cd65903b
hex8352a0df

2203230431 has 4 divisors (see below), whose sum is σ = 2254468392. Its totient is φ = 2151992472.

The previous prime is 2203230401. The next prime is 2203230437. The reversal of 2203230431 is 1340323022.

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 2203230431 - 226 = 2136121567 is a prime.

It is a super-2 number, since 2×22032304312 = 9708448664168891522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203230437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25618916 + ... + 25619001.

It is an arithmetic number, because the mean of its divisors is an integer number (563617098).

Almost surely, 22203230431 is an apocalyptic number.

2203230431 is a deficient number, since it is larger than the sum of its proper divisors (51237961).

2203230431 is an equidigital number, since it uses as much as digits as its factorization.

2203230431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51237960.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2203230431 is about 46938.5814762227. The cubic root of 2203230431 is about 1301.2277220264.

Adding to 2203230431 its reverse (1340323022), we get a palindrome (3543553453).

The spelling of 2203230431 in words is "two billion, two hundred three million, two hundred thirty thousand, four hundred thirty-one".

Divisors: 1 43 51237917 2203230431