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28851973153 is a prime number
BaseRepresentation
bin11010110111101101…
…100010110000100001
32202110202002002121021
4122313231202300201
5433042101120103
621130541525441
72040656503543
oct326755426041
982422062537
1028851973153
1111266206513
125712573881
13294a59a183
141579ba7693
15b3ce57bbd
hex6b7b62c21

28851973153 has 2 divisors, whose sum is σ = 28851973154. Its totient is φ = 28851973152.

The previous prime is 28851973091. The next prime is 28851973193. The reversal of 28851973153 is 35137915882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27986613264 + 865359889 = 167292^2 + 29417^2 .

It is a cyclic number.

It is not a de Polignac number, because 28851973153 - 233 = 20262038561 is a prime.

It is a super-2 number, since 2×288519731532 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28851973153.

It is not a weakly prime, because it can be changed into another prime (28851973193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14425986576 + 14425986577.

It is an arithmetic number, because the mean of its divisors is an integer number (14425986577).

Almost surely, 228851973153 is an apocalyptic number.

It is an amenable number.

28851973153 is a deficient number, since it is larger than the sum of its proper divisors (1).

28851973153 is an equidigital number, since it uses as much as digits as its factorization.

28851973153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 52.

The spelling of 28851973153 in words is "twenty-eight billion, eight hundred fifty-one million, nine hundred seventy-three thousand, one hundred fifty-three".