Base | Representation |
---|---|
bin | 1001101011010101001101… |
… | …00100011110001100100011 |
3 | 2210100100120011000020002021 |
4 | 10311222212210132030203 |
5 | 10242123032004004412 |
6 | 113131531545202311 |
7 | 4324301534210155 |
oct | 465524644361443 |
9 | 83310504006067 |
10 | 21280062563107 |
11 | 6864907601857 |
12 | 2478275a90397 |
13 | bb491696a02a |
14 | 537d63968ad5 |
15 | 26d82379c607 |
hex | 135aa691e323 |
21280062563107 has 8 divisors (see below), whose sum is σ = 21496477798400. Its totient is φ = 21064410698184.
The previous prime is 21280062563069. The next prime is 21280062563129. The reversal of 21280062563107 is 70136526008212.
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 21280062563107 - 211 = 21280062561059 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (21280062543107) 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, 190786557 + ... + 190898062.
It is an arithmetic number, because the mean of its divisors is an integer number (2687059724800).
Almost surely, 221280062563107 is an apocalyptic number.
21280062563107 is a deficient number, since it is larger than the sum of its proper divisors (216415235293).
21280062563107 is a wasteful number, since it uses less digits than its factorization.
21280062563107 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 381685185.
The product of its (nonzero) digits is 241920, while the sum is 43.
The spelling of 21280062563107 in words is "twenty-one trillion, two hundred eighty billion, sixty-two million, five hundred sixty-three thousand, one hundred seven".
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