Base | Representation |
---|---|
bin | 10110100010101011… |
… | …11000101111111010 |
3 | 1011020102020220012210 |
4 | 23101111320233322 |
5 | 144241120011302 |
6 | 5320514115550 |
7 | 605621145060 |
oct | 132125705772 |
9 | 34212226183 |
10 | 12102110202 |
11 | 5150364576 |
12 | 2418b7bbb6 |
13 | 11ab366970 |
14 | 82b3dc030 |
15 | 4ac6e066c |
hex | 2d1578bfa |
12102110202 has 64 divisors (see below), whose sum is σ = 29859508224. Its totient is φ = 3184297920.
The previous prime is 12102110201. The next prime is 12102110233. The reversal of 12102110202 is 20201120121.
It is a super-2 number, since 2×121021102022 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12102110201) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209613 + ... + 261039.
It is an arithmetic number, because the mean of its divisors is an integer number (466554816).
Almost surely, 212102110202 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12102110202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14929754112).
12102110202 is an abundant number, since it is smaller than the sum of its proper divisors (17757398022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12102110202 is a wasteful number, since it uses less digits than its factorization.
12102110202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51883.
The product of its (nonzero) digits is 16, while the sum is 12.
Adding to 12102110202 its reverse (20201120121), we get a palindrome (32303230323).
The spelling of 12102110202 in words is "twelve billion, one hundred two million, one hundred ten thousand, two hundred two".
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