Base | Representation |
---|---|
bin | 10011011011111111… |
… | …111001011111101111 |
3 | 1222212112011000112001 |
4 | 103123333321133233 |
5 | 320220413030223 |
6 | 13330554153131 |
7 | 1336125062026 |
oct | 233377713757 |
9 | 58775130461 |
10 | 20870830063 |
11 | 8940048596 |
12 | 40657227a7 |
13 | 1c77c2a0b5 |
14 | 101dc0b8bd |
15 | 8224349ad |
hex | 4dbff97ef |
20870830063 has 8 divisors (see below), whose sum is σ = 21656992896. Its totient is φ = 20098339800.
The previous prime is 20870830021. The next prime is 20870830067. The reversal of 20870830063 is 36003807802.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20870830063 - 225 = 20837275631 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20870830067) 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, 3415033 + ... + 3421138.
It is an arithmetic number, because the mean of its divisors is an integer number (2707124112).
Almost surely, 220870830063 is an apocalyptic number.
20870830063 is a deficient number, since it is larger than the sum of its proper divisors (786162833).
20870830063 is an equidigital number, since it uses as much as digits as its factorization.
20870830063 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6836285.
The product of its (nonzero) digits is 48384, while the sum is 37.
The spelling of 20870830063 in words is "twenty billion, eight hundred seventy million, eight hundred thirty thousand, sixty-three".
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