Search a number
-
+
2311231023 = 3385601149
BaseRepresentation
bin1000100111000010…
…1001011000101111
312222001222200221000
42021300221120233
514213133343043
61021201411343
7111163065603
oct21160513057
95861880830
102311231023
11a866a2092
12546039b53
132aaaa812a
1417cd53503
15d7d8e2d3
hex89c2962f

2311231023 has 8 divisors (see below), whose sum is σ = 3424046000. Its totient is φ = 1540820664.

The previous prime is 2311230997. The next prime is 2311231033. The reversal of 2311231023 is 3201321132.

It is not a de Polignac number, because 2311231023 - 25 = 2311230991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2311230987 and 2311231005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311231033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42800548 + ... + 42800601.

It is an arithmetic number, because the mean of its divisors is an integer number (428005750).

Almost surely, 22311231023 is an apocalyptic number.

2311231023 is a deficient number, since it is larger than the sum of its proper divisors (1112814977).

2311231023 is an equidigital number, since it uses as much as digits as its factorization.

2311231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85601158 (or 85601152 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2311231023 is about 48075.2641490403. The cubic root of 2311231023 is about 1322.1511875799.

Adding to 2311231023 its reverse (3201321132), we get a palindrome (5512552155).

The spelling of 2311231023 in words is "two billion, three hundred eleven million, two hundred thirty-one thousand, twenty-three".

Divisors: 1 3 9 27 85601149 256803447 770410341 2311231023