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20079125153 = 171181125009
BaseRepresentation
bin10010101100110011…
…110010001010100001
31220211100102020112222
4102230303302022201
5312110224001103
613120233200425
71310402514323
oct225463621241
956740366488
1020079125153
118574162a0a
123a84560115
131b7cbbca59
14d86a01613
157c7b9a638
hex4accf22a1

20079125153 has 4 divisors (see below), whose sum is σ = 21260250180. Its totient is φ = 18898000128.

The previous prime is 20079125137. The next prime is 20079125161. The reversal of 20079125153 is 35152197002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11305430929 + 8773694224 = 106327^2 + 93668^2 .

It is a cyclic number.

It is not a de Polignac number, because 20079125153 - 24 = 20079125137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20079125173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590562488 + ... + 590562521.

It is an arithmetic number, because the mean of its divisors is an integer number (5315062545).

Almost surely, 220079125153 is an apocalyptic number.

It is an amenable number.

20079125153 is a deficient number, since it is larger than the sum of its proper divisors (1181125027).

20079125153 is a wasteful number, since it uses less digits than its factorization.

20079125153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181125026.

The product of its (nonzero) digits is 18900, while the sum is 35.

The spelling of 20079125153 in words is "twenty billion, seventy-nine million, one hundred twenty-five thousand, one hundred fifty-three".

Divisors: 1 17 1181125009 20079125153