Search a number
-
+
20025345707 is a prime number
BaseRepresentation
bin10010101001100110…
…101000011010101011
31220200121012222000122
4102221212220122223
5312002442030312
613111032353455
71306150426043
oct225146503253
956617188018
1020025345707
118546870694
123a6a54588b
131b71a102b3
14d7d802723
157c30c5b72
hex4a99a86ab

20025345707 has 2 divisors, whose sum is σ = 20025345708. Its totient is φ = 20025345706.

The previous prime is 20025345661. The next prime is 20025345751. The reversal of 20025345707 is 70754352002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20025345707 - 224 = 20008568491 is a prime.

It is a super-4 number, since 4×200253457074 (a number of 42 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (20025345787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012672853 + 10012672854.

It is an arithmetic number, because the mean of its divisors is an integer number (10012672854).

Almost surely, 220025345707 is an apocalyptic number.

20025345707 is a deficient number, since it is larger than the sum of its proper divisors (1).

20025345707 is an equidigital number, since it uses as much as digits as its factorization.

20025345707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 35.

Adding to 20025345707 its reverse (70754352002), we get a palindrome (90779697709).

The spelling of 20025345707 in words is "twenty billion, twenty-five million, three hundred forty-five thousand, seven hundred seven".