Search a number
-
+
2231223023 = 2767806369
BaseRepresentation
bin1000010011111101…
…1100001011101111
312202111102212120202
42010333130023233
514032143114043
61005222504115
7106202040251
oct20477341357
95674385522
102231223023
11a45515977
1252329503b
13297344213
14172487cd1
15d0d381b8
hex84fdc2ef

2231223023 has 4 divisors (see below), whose sum is σ = 2232032160. Its totient is φ = 2230413888.

The previous prime is 2231222971. The next prime is 2231223053. The reversal of 2231223023 is 3203221322.

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 2231223023 - 214 = 2231206639 is a prime.

It is a super-3 number, since 3×22312230233 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231222986 and 2231223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231223053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400418 + ... + 405951.

It is an arithmetic number, because the mean of its divisors is an integer number (558008040).

Almost surely, 22231223023 is an apocalyptic number.

2231223023 is a deficient number, since it is larger than the sum of its proper divisors (809137).

2231223023 is an equidigital number, since it uses as much as digits as its factorization.

2231223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809136.

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

The square root of 2231223023 is about 47235.8235135157. The cubic root of 2231223023 is about 1306.7153542079.

Adding to 2231223023 its reverse (3203221322), we get a palindrome (5434444345).

The spelling of 2231223023 in words is "two billion, two hundred thirty-one million, two hundred twenty-three thousand, twenty-three".

Divisors: 1 2767 806369 2231223023