Base | Representation |
---|---|
bin | 1011110001101000100… |
… | …1000000010101111110 |
3 | 201100011202221222200100 |
4 | 2330122021000111332 |
5 | 11303303304444410 |
6 | 232534122341530 |
7 | 20421142615215 |
oct | 2743211002576 |
9 | 640152858610 |
10 | 202302031230 |
11 | 7888324a352 |
12 | 3325a65a8a6 |
13 | 16100225a30 |
14 | 9b11b1c07c |
15 | 53e05e78c0 |
hex | 2f1a24057e |
202302031230 has 96 divisors (see below), whose sum is σ = 566989113600. Its totient is φ = 49749649920.
The previous prime is 202302031199. The next prime is 202302031231. The reversal of 202302031230 is 32130203202.
It is a happy number.
202302031230 is a `hidden beast` number, since 2 + 0 + 230 + 203 + 1 + 230 = 666.
It is a super-2 number, since 2×2023020312302 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (202302031231) 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, 1144915 + ... + 1309745.
It is an arithmetic number, because the mean of its divisors is an integer number (5906136600).
Almost surely, 2202302031230 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 202302031230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283494556800).
202302031230 is an abundant number, since it is smaller than the sum of its proper divisors (364687082370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
202302031230 is a wasteful number, since it uses less digits than its factorization.
202302031230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 165906 (or 165903 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 202302031230 its reverse (32130203202), we get a palindrome (234432234432).
The spelling of 202302031230 in words is "two hundred two billion, three hundred two million, thirty-one thousand, two hundred thirty".
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