Search a number
-
+
2231423071 is a prime number
BaseRepresentation
bin1000010100000000…
…1101000001011111
312202111211000222221
42011000031001133
514032221014241
61005231050211
7106203532423
oct20500150137
95674730887
102231423071
11a456421a9
12523370967
132973b42a7
141724dab83
15d0d775d1
hex8500d05f

2231423071 has 2 divisors, whose sum is σ = 2231423072. Its totient is φ = 2231423070.

The previous prime is 2231422987. The next prime is 2231423087. The reversal of 2231423071 is 1703241322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231423071 - 29 = 2231422559 is a prime.

It is a super-3 number, since 3×22314230713 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231427071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115711535 + 1115711536.

It is an arithmetic number, because the mean of its divisors is an integer number (1115711536).

Almost surely, 22231423071 is an apocalyptic number.

2231423071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231423071 is an equidigital number, since it uses as much as digits as its factorization.

2231423071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2231423071 is about 47237.9410114370. The cubic root of 2231423071 is about 1306.7544057323.

Adding to 2231423071 its reverse (1703241322), we get a palindrome (3934664393).

The spelling of 2231423071 in words is "two billion, two hundred thirty-one million, four hundred twenty-three thousand, seventy-one".