Search a number
-
+
2237934949 is a prime number
BaseRepresentation
bin1000010101100100…
…0010110101100101
312202222001212121121
42011121002311211
514040402404244
61010022413541
7106313063455
oct20531026545
95688055547
102237934949
11a4928a718
125255912b1
13298854283
14173313d65
15d1711c84
hex85642d65

2237934949 has 2 divisors, whose sum is σ = 2237934950. Its totient is φ = 2237934948.

The previous prime is 2237934913. The next prime is 2237934971. The reversal of 2237934949 is 9494397322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1665864225 + 572070724 = 40815^2 + 23918^2 .

It is a cyclic number.

It is not a de Polignac number, because 2237934949 - 231 = 90451301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2237934896 and 2237934905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2237934649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1118967474 + 1118967475.

It is an arithmetic number, because the mean of its divisors is an integer number (1118967475).

Almost surely, 22237934949 is an apocalyptic number.

It is an amenable number.

2237934949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2237934949 is an equidigital number, since it uses as much as digits as its factorization.

2237934949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 52.

The square root of 2237934949 is about 47306.8171514423. The cubic root of 2237934949 is about 1308.0243219564.

The spelling of 2237934949 in words is "two billion, two hundred thirty-seven million, nine hundred thirty-four thousand, nine hundred forty-nine".