Base | Representation |
---|---|
bin | 10010101001111000… |
… | …011101101000100011 |
3 | 1220200221000110010110 |
4 | 102221320131220203 |
5 | 312010141121011 |
6 | 13111320502403 |
7 | 1306235235102 |
oct | 225170355043 |
9 | 56627013113 |
10 | 20030020131 |
11 | 8549473650 |
12 | 3a7001aa03 |
13 | 1b72988b24 |
14 | d8029c039 |
15 | 7c36eaba6 |
hex | 4a9e1da23 |
20030020131 has 32 divisors (see below), whose sum is σ = 29493112320. Its totient is φ = 11990592000.
The previous prime is 20030020093. The next prime is 20030020163. The reversal of 20030020131 is 13102003002.
It is a happy number.
It is not a de Polignac number, because 20030020131 - 26 = 20030020067 is a prime.
It is a super-2 number, since 2×200300201312 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (20030020181) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436250 + ... + 1450128.
It is an arithmetic number, because the mean of its divisors is an integer number (921659760).
Almost surely, 220030020131 is an apocalyptic number.
20030020131 is a deficient number, since it is larger than the sum of its proper divisors (9463092189).
20030020131 is a wasteful number, since it uses less digits than its factorization.
20030020131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14427.
The product of its (nonzero) digits is 36, while the sum is 12.
Adding to 20030020131 its reverse (13102003002), we get a palindrome (33132023133).
The spelling of 20030020131 in words is "twenty billion, thirty million, twenty thousand, one hundred thirty-one".
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