Base | Representation |
---|---|
bin | 1100011010001111011… |
… | …0101010000111110100 |
3 | 202101022102221201001101 |
4 | 3012203312222013310 |
5 | 11443114304141040 |
6 | 241535511335444 |
7 | 21255232413103 |
oct | 3064366520764 |
9 | 671272851041 |
10 | 213202412020 |
11 | 82467226814 |
12 | 353a1081584 |
13 | 17149610cb0 |
14 | a46769a03a |
15 | 582c55a09a |
hex | 31a3daa1f4 |
213202412020 has 96 divisors (see below), whose sum is σ = 508851907200. Its totient is φ = 74385298944.
The previous prime is 213202412009. The next prime is 213202412041. The reversal of 213202412020 is 20214202312.
213202412020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2132024120202 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1866187 + ... + 1977133.
It is an arithmetic number, because the mean of its divisors is an integer number (5300540700).
Almost surely, 2213202412020 is an apocalyptic number.
213202412020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 213202412020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254425953600).
213202412020 is an abundant number, since it is smaller than the sum of its proper divisors (295649495180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213202412020 is a wasteful number, since it uses less digits than its factorization.
213202412020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111377 (or 111375 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 19.
Adding to 213202412020 its reverse (20214202312), we get a palindrome (233416614332).
The spelling of 213202412020 in words is "two hundred thirteen billion, two hundred two million, four hundred twelve thousand, twenty".
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