Base | Representation |
---|---|
bin | 11110100011111111100… |
… | …001111010110001101111 |
3 | 21102210001201101102001000 |
4 | 132203333201322301233 |
5 | 233402233131401111 |
6 | 4244455521451343 |
7 | 304510453661520 |
oct | 36437741726157 |
9 | 7383051342030 |
10 | 2100231122031 |
11 | 73a780796329 |
12 | 29b0571a0b53 |
13 | 123087c069c3 |
14 | 7391a4b4847 |
15 | 3997266cc56 |
hex | 1e8ff87ac6f |
2100231122031 has 32 divisors (see below), whose sum is σ = 3556065369600. Its totient is φ = 1200092077440.
The previous prime is 2100231121939. The next prime is 2100231122081. The reversal of 2100231122031 is 1302211320012.
2100231122031 is a `hidden beast` number, since 2 + 100 + 2 + 311 + 220 + 31 = 666.
It is not a de Polignac number, because 2100231122031 - 27 = 2100231121903 is a prime.
It is a super-2 number, since 2×21002311220312 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2100231121995 and 2100231122013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2100231122081) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6056791 + ... + 6394151.
It is an arithmetic number, because the mean of its divisors is an integer number (111127042800).
Almost surely, 22100231122031 is an apocalyptic number.
2100231122031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2100231122031 is a deficient number, since it is larger than the sum of its proper divisors (1455834247569).
2100231122031 is a wasteful number, since it uses less digits than its factorization.
2100231122031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 370316 (or 370310 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 2100231122031 its reverse (1302211320012), we get a palindrome (3402442442043).
The spelling of 2100231122031 in words is "two trillion, one hundred billion, two hundred thirty-one million, one hundred twenty-two thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •