Search a number
-
+
2231310113 = 7131426903
BaseRepresentation
bin1000010011111111…
…0001011100100001
312202111121022001022
42010333301130201
514032203410423
61005224415225
7106202552204
oct20477613441
95674538038
102231310113
11a4557534a
12523317515
13297374a56
141724ab93b
15d0d53dc8
hex84ff1721

2231310113 has 4 divisors (see below), whose sum is σ = 2262737088. Its totient is φ = 2199883140.

The previous prime is 2231310089. The next prime is 2231310121. The reversal of 2231310113 is 3110131322.

2231310113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3110131322 = 21555065661.

It is a cyclic number.

It is not a de Polignac number, because 2231310113 - 218 = 2231047969 is a prime.

It is a super-3 number, since 3×22313101133 (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 = 2231310091 and 2231310100.

It is not an unprimeable number, because it can be changed into a prime (2231310143) 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, 15713381 + ... + 15713522.

It is an arithmetic number, because the mean of its divisors is an integer number (565684272).

Almost surely, 22231310113 is an apocalyptic number.

It is an amenable number.

2231310113 is a deficient number, since it is larger than the sum of its proper divisors (31426975).

2231310113 is an equidigital number, since it uses as much as digits as its factorization.

2231310113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31426974.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2231310113 is about 47236.7453684100. The cubic root of 2231310113 is about 1306.7323554009.

Adding to 2231310113 its reverse (3110131322), we get a palindrome (5341441435).

The spelling of 2231310113 in words is "two billion, two hundred thirty-one million, three hundred ten thousand, one hundred thirteen".

Divisors: 1 71 31426903 2231310113