Search a number
-
+
2972375381 is a prime number
BaseRepresentation
bin1011000100101010…
…1101100101010101
321200011001022111002
42301022231211111
522041412003011
61210540153045
7133441526303
oct26112554525
97604038432
102972375381
111295912688
126ab538785
13384a61801
14202a95273
15125e38c3b
hexb12ad955

2972375381 has 2 divisors, whose sum is σ = 2972375382. Its totient is φ = 2972375380.

The previous prime is 2972375327. The next prime is 2972375389. The reversal of 2972375381 is 1835732792.

2972375381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2816000356 + 156375025 = 53066^2 + 12505^2 .

It is a cyclic number.

It is not a de Polignac number, because 2972375381 - 210 = 2972374357 is a prime.

It is a super-2 number, since 2×29723753812 = 17670030811149790322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2972375389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486187690 + 1486187691.

It is an arithmetic number, because the mean of its divisors is an integer number (1486187691).

Almost surely, 22972375381 is an apocalyptic number.

It is an amenable number.

2972375381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2972375381 is an equidigital number, since it uses as much as digits as its factorization.

2972375381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 2972375381 is about 54519.4954213628. The cubic root of 2972375381 is about 1437.8090687275.

The spelling of 2972375381 in words is "two billion, nine hundred seventy-two million, three hundred seventy-five thousand, three hundred eighty-one".