Base | Representation |
---|---|
bin | 1100111000010000100… |
… | …0010111010111111101 |
3 | 210011002222221112222201 |
4 | 3032010020113113331 |
5 | 12111120042230001 |
6 | 245351232111501 |
7 | 21662013652603 |
oct | 3160410272775 |
9 | 704088845881 |
10 | 221260117501 |
11 | 85921628145 |
12 | 36a6b695591 |
13 | 17b31aa9867 |
14 | a9cd8a5873 |
15 | 5b4eb53501 |
hex | 33842175fd |
221260117501 has 8 divisors (see below), whose sum is σ = 224896134744. Its totient is φ = 217624384320.
The previous prime is 221260117489. The next prime is 221260117511. The reversal of 221260117501 is 105711062122.
It can be written as a sum of positive squares in 4 ways, for example, as 28055915001 + 193204202500 = 167499^2 + 439550^2 .
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 221260117501 - 25 = 221260117469 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 221260117501.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (221260117511) 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, 1983915 + ... + 2092471.
It is an arithmetic number, because the mean of its divisors is an integer number (28112016843).
Almost surely, 2221260117501 is an apocalyptic number.
It is an amenable number.
221260117501 is a deficient number, since it is larger than the sum of its proper divisors (3636017243).
221260117501 is a wasteful number, since it uses less digits than its factorization.
221260117501 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142031.
The product of its (nonzero) digits is 1680, while the sum is 28.
Adding to 221260117501 its reverse (105711062122), we get a palindrome (326971179623).
The spelling of 221260117501 in words is "two hundred twenty-one billion, two hundred sixty million, one hundred seventeen thousand, five hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •