Search a number
-
+
2313831749 is a prime number
BaseRepresentation
bin1000100111101010…
…0100010101000101
312222020212211110012
42021322210111011
514214320103444
61021333240005
7111224150105
oct21172442505
95866784405
102313831749
11a88109049
12546a93005
132ab4a8b18
1417d42d205
15d8204b9e
hex89ea4545

2313831749 has 2 divisors, whose sum is σ = 2313831750. Its totient is φ = 2313831748.

The previous prime is 2313831727. The next prime is 2313831757. The reversal of 2313831749 is 9471383132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2129361025 + 184470724 = 46145^2 + 13582^2 .

It is a cyclic number.

It is not a de Polignac number, because 2313831749 - 28 = 2313831493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2313831719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156915874 + 1156915875.

It is an arithmetic number, because the mean of its divisors is an integer number (1156915875).

Almost surely, 22313831749 is an apocalyptic number.

It is an amenable number.

2313831749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313831749 is an equidigital number, since it uses as much as digits as its factorization.

2313831749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 2313831749 is about 48102.3050279298. The cubic root of 2313831749 is about 1322.6469210931.

The spelling of 2313831749 in words is "two billion, three hundred thirteen million, eight hundred thirty-one thousand, seven hundred forty-nine".