Base | Representation |
---|---|
bin | 10010101001111100… |
… | …001101001011010110 |
3 | 1220200222212022001010 |
4 | 102221330031023112 |
5 | 312010414020202 |
6 | 13111353513050 |
7 | 1306246462464 |
oct | 225174151326 |
9 | 56628768033 |
10 | 20031001302 |
11 | 8549a83834 |
12 | 3a70412786 |
13 | 1b72c405c0 |
14 | d80475834 |
15 | 7c384176c |
hex | 4a9f0d2d6 |
20031001302 has 32 divisors (see below), whose sum is σ = 43360531200. Its totient is φ = 6132408480.
The previous prime is 20031001273. The next prime is 20031001303. The reversal of 20031001302 is 20310013002.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20031001303) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629724 + ... + 660767.
It is an arithmetic number, because the mean of its divisors is an integer number (1355016600).
Almost surely, 220031001302 is an apocalyptic number.
20031001302 is an abundant number, since it is smaller than the sum of its proper divisors (23329529898).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20031001302 is a wasteful number, since it uses less digits than its factorization.
20031001302 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1290708.
The product of its (nonzero) digits is 36, while the sum is 12.
Adding to 20031001302 its reverse (20310013002), we get a palindrome (40341014304).
The spelling of 20031001302 in words is "twenty billion, thirty-one million, one thousand, three hundred two".
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