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20080630293 = 326092565559
BaseRepresentation
bin10010101100111001…
…100001101000010101
31220211110020201012220
4102230321201220111
5312111120132133
613120325332553
71310421353433
oct225471415025
956743221186
1020080630293
118574aa0829
123a84b67159
131b802c8b79
14d86cb3d53
157c7d965b3
hex4ace61a15

20080630293 has 8 divisors (see below), whose sum is σ = 26784446400. Its totient is φ = 13381950528.

The previous prime is 20080630289. The next prime is 20080630307. The reversal of 20080630293 is 39203608002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20080630293 - 22 = 20080630289 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20080630223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274953 + ... + 1290606.

It is an arithmetic number, because the mean of its divisors is an integer number (3348055800).

Almost surely, 220080630293 is an apocalyptic number.

It is an amenable number.

20080630293 is a deficient number, since it is larger than the sum of its proper divisors (6703816107).

20080630293 is a wasteful number, since it uses less digits than its factorization.

20080630293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568171.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 20080630293 in words is "twenty billion, eighty million, six hundred thirty thousand, two hundred ninety-three".

Divisors: 1 3 2609 7827 2565559 7696677 6693543431 20080630293