Base | Representation |
---|---|
bin | 10011101111101000… |
… | …110011111011111101 |
3 | 2000201111010221220021 |
4 | 103233220303323331 |
5 | 321404240303201 |
6 | 13423404252141 |
7 | 1350235523554 |
oct | 235750637375 |
9 | 60644127807 |
10 | 21200322301 |
11 | 8a9a035a24 |
12 | 4137b41051 |
13 | 1ccb282a12 |
14 | 105189ad9b |
15 | 84131bea1 |
hex | 4efa33efd |
21200322301 has 4 divisors (see below), whose sum is σ = 21330385792. Its totient is φ = 21070258812.
The previous prime is 21200322257. The next prime is 21200322337. The reversal of 21200322301 is 10322300212.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 21200322301 - 215 = 21200289533 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 (21200322001) 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, 65031501 + ... + 65031826.
It is an arithmetic number, because the mean of its divisors is an integer number (5332596448).
Almost surely, 221200322301 is an apocalyptic number.
It is an amenable number.
21200322301 is a deficient number, since it is larger than the sum of its proper divisors (130063491).
21200322301 is a wasteful number, since it uses less digits than its factorization.
21200322301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130063490.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 21200322301 its reverse (10322300212), we get a palindrome (31522622513).
The spelling of 21200322301 in words is "twenty-one billion, two hundred million, three hundred twenty-two thousand, three hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •