Base | Representation |
---|---|
bin | 100000110110000… |
… | …1101110101000101 |
3 | 2211210210222201200 |
4 | 1001230031311011 |
5 | 4224120010041 |
6 | 301210013113 |
7 | 36211531515 |
oct | 10154156505 |
9 | 2753728650 |
10 | 1102110021 |
11 | 516126631 |
12 | 269117199 |
13 | 14743c20c |
14 | a652b845 |
15 | 66b511b6 |
hex | 41b0dd45 |
1102110021 has 24 divisors (see below), whose sum is σ = 1668176640. Its totient is φ = 699822816.
The previous prime is 1102110007. The next prime is 1102110041. The reversal of 1102110021 is 1200112011.
It is a happy number.
It is not a de Polignac number, because 1102110021 - 213 = 1102101829 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 1102109985 and 1102110012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1102110041) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38335 + ... + 60611.
It is an arithmetic number, because the mean of its divisors is an integer number (69507360).
Almost surely, 21102110021 is an apocalyptic number.
It is an amenable number.
1102110021 is a deficient number, since it is larger than the sum of its proper divisors (566066619).
1102110021 is a wasteful number, since it uses less digits than its factorization.
1102110021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22545 (or 22542 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 9.
The square root of 1102110021 is about 33198.0424272275. The cubic root of 1102110021 is about 1032.9397340943.
Adding to 1102110021 its reverse (1200112011), we get a palindrome (2302222032).
The spelling of 1102110021 in words is "one billion, one hundred two million, one hundred ten thousand, twenty-one".
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