Base | Representation |
---|---|
bin | 10010111010100100… |
… | …111111111011111110 |
3 | 1221102110002112012222 |
4 | 102322210333323332 |
5 | 313043343133210 |
6 | 13155204325342 |
7 | 1316206155152 |
oct | 227244777376 |
9 | 57373075188 |
10 | 20310130430 |
11 | 86825a2667 |
12 | 3b299a3852 |
13 | 1bb8a11775 |
14 | da9575062 |
15 | 7dd0cb655 |
hex | 4ba93fefe |
20310130430 has 16 divisors (see below), whose sum is σ = 36560919024. Its totient is φ = 8123455680.
The previous prime is 20310130411. The next prime is 20310130433. The reversal of 20310130430 is 3403101302.
It is a happy number.
It is a super-2 number, since 2×203101304302 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20310130399 and 20310130408.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20310130433) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84629 + ... + 218591.
It is an arithmetic number, because the mean of its divisors is an integer number (2285057439).
Almost surely, 220310130430 is an apocalyptic number.
20310130430 is a deficient number, since it is larger than the sum of its proper divisors (16250788594).
20310130430 is a wasteful number, since it uses less digits than its factorization.
20310130430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149131.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 20310130430 its reverse (3403101302), we get a palindrome (23713231732).
The spelling of 20310130430 in words is "twenty billion, three hundred ten million, one hundred thirty thousand, four hundred thirty".
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