Search a number
-
+
2303122231 = 21531069727
BaseRepresentation
bin1000100101000110…
…1101101100110111
312221111201201202101
42021101231230313
514204044402411
61020311522531
7111034134034
oct21121555467
95844651671
102303122231
11a82063903
12543389447
132a91c9327
1417bc4238b
15d72db8c1
hex8946db37

2303122231 has 4 divisors (see below), whose sum is σ = 2304194112. Its totient is φ = 2302050352.

The previous prime is 2303122229. The next prime is 2303122271. The reversal of 2303122231 is 1322213032.

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 2303122231 - 21 = 2303122229 is a prime.

It is a super-2 number, since 2×23031222312 = 10608744021852834722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2303122199 and 2303122208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303122271) by changing a digit.

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, 532711 + ... + 537016.

It is an arithmetic number, because the mean of its divisors is an integer number (576048528).

Almost surely, 22303122231 is an apocalyptic number.

2303122231 is a deficient number, since it is larger than the sum of its proper divisors (1071881).

2303122231 is a wasteful number, since it uses less digits than its factorization.

2303122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071880.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2303122231 is about 47990.8557018939. The cubic root of 2303122231 is about 1320.6031508587.

Adding to 2303122231 its reverse (1322213032), we get a palindrome (3625335263).

The spelling of 2303122231 in words is "two billion, three hundred three million, one hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 2153 1069727 2303122231