Base | Representation |
---|---|
bin | 10110101110100101… |
… | …11011111010010100 |
3 | 1011111101012211021200 |
4 | 23113102323322110 |
5 | 144442203000040 |
6 | 5334443112500 |
7 | 611243201040 |
oct | 132722737224 |
9 | 34441184250 |
10 | 12202000020 |
11 | 51a1790241 |
12 | 2446512730 |
13 | 11c5c6c272 |
14 | 83a7a1020 |
15 | 4b6372630 |
hex | 2d74bbe94 |
12202000020 has 144 divisors (see below), whose sum is σ = 44139513600. Its totient is φ = 2667760128.
The previous prime is 12202000003. The next prime is 12202000021. The reversal of 12202000020 is 2000020221.
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 = 12201999966 and 12202000011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12202000021) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181545 + ... + 239504.
It is an arithmetic number, because the mean of its divisors is an integer number (306524400).
Almost surely, 212202000020 is an apocalyptic number.
12202000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12202000020 is an abundant number, since it is smaller than the sum of its proper divisors (31937513580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12202000020 is a wasteful number, since it uses less digits than its factorization.
12202000020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 421094 (or 421089 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
Adding to 12202000020 its reverse (2000020221), we get a palindrome (14202020241).
The spelling of 12202000020 in words is "twelve billion, two hundred two million, twenty", and thus it is an aban number.
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