Base | Representation |
---|---|
bin | 10011111100011000… |
… | …011011100110000101 |
3 | 2001021101110121210202 |
4 | 103330120123212011 |
5 | 322324004211401 |
6 | 13500523100245 |
7 | 1355443056005 |
oct | 237430334605 |
9 | 61241417722 |
10 | 21414132101 |
11 | 90997a043a |
12 | 4197671685 |
13 | 20336639ab |
14 | 1072036005 |
15 | 854ea306b |
hex | 4fc61b985 |
21414132101 has 8 divisors (see below), whose sum is σ = 21475863000. Its totient is φ = 21352481280.
The previous prime is 21414132071. The next prime is 21414132107. The reversal of 21414132101 is 10123141412.
It can be written as a sum of positive squares in 4 ways, for example, as 134908225 + 21279223876 = 11615^2 + 145874^2 .
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 21414132101 - 214 = 21414115717 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 (21414132107) 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, 537725 + ... + 576173.
It is an arithmetic number, because the mean of its divisors is an integer number (2684482875).
Almost surely, 221414132101 is an apocalyptic number.
It is an amenable number.
21414132101 is a deficient number, since it is larger than the sum of its proper divisors (61730899).
21414132101 is a wasteful number, since it uses less digits than its factorization.
21414132101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40039.
The product of its (nonzero) digits is 192, while the sum is 20.
Adding to 21414132101 its reverse (10123141412), we get a palindrome (31537273513).
The spelling of 21414132101 in words is "twenty-one billion, four hundred fourteen million, one hundred thirty-two thousand, one hundred one".
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