Base | Representation |
---|---|
bin | 10010101010000000… |
… | …000101111000111111 |
3 | 1220201001210001110211 |
4 | 102222000011320333 |
5 | 312011144120111 |
6 | 13111431413251 |
7 | 1306261234522 |
oct | 225200057077 |
9 | 56631701424 |
10 | 20032020031 |
11 | 854a60a161 |
12 | 3a70824227 |
13 | 1b732091ba |
14 | d8065cbb9 |
15 | 7c3993521 |
hex | 4aa005e3f |
20032020031 has 8 divisors (see below), whose sum is σ = 20365665264. Its totient is φ = 19698544320.
The previous prime is 20032020011. The next prime is 20032020061. The reversal of 20032020031 is 13002023002.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20032020031 - 25 = 20032019999 is a prime.
It is a super-2 number, since 2×200320200312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20032019993 and 20032020020.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20032020011) 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, 208140 + ... + 288766.
It is an arithmetic number, because the mean of its divisors is an integer number (2545708158).
Almost surely, 220032020031 is an apocalyptic number.
20032020031 is a deficient number, since it is larger than the sum of its proper divisors (333645233).
20032020031 is an equidigital number, since it uses as much as digits as its factorization.
20032020031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84761.
The product of its (nonzero) digits is 72, while the sum is 13.
Adding to 20032020031 its reverse (13002023002), we get a palindrome (33034043033).
The spelling of 20032020031 in words is "twenty billion, thirty-two million, twenty thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •