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2320200431 = 2546991099
BaseRepresentation
bin1000101001001011…
…0111001011101111
312222200212101122022
42022102313023233
514222432403211
61022121540355
7111332243513
oct21222671357
95880771568
102320200431
11a90768a1a
125490446bb
132ac8c8883
1418020a143
15d8a61bdb
hex8a4b72ef

2320200431 has 4 divisors (see below), whose sum is σ = 2320317000. Its totient is φ = 2320083864.

The previous prime is 2320200427. The next prime is 2320200433. The reversal of 2320200431 is 1340020232.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2320200431 - 22 = 2320200427 is a prime.

It is a super-2 number, since 2×23202004312 = 10766660080025171522, 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 (2320200433) 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, 20081 + ... + 71018.

It is an arithmetic number, because the mean of its divisors is an integer number (580079250).

Almost surely, 22320200431 is an apocalyptic number.

2320200431 is a deficient number, since it is larger than the sum of its proper divisors (116569).

2320200431 is an equidigital number, since it uses as much as digits as its factorization.

2320200431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116568.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2320200431 is about 48168.4588813053. The cubic root of 2320200431 is about 1323.8593113242.

Adding to 2320200431 its reverse (1340020232), we get a palindrome (3660220663).

The spelling of 2320200431 in words is "two billion, three hundred twenty million, two hundred thousand, four hundred thirty-one".

Divisors: 1 25469 91099 2320200431