Base | Representation |
---|---|
bin | 101111110001011000111100… |
… | …010111101100101011110111 |
3 | 1000112220120120011112022221010 |
4 | 233301120330113230223313 |
5 | 210014303323043443111 |
6 | 2022503343452523303 |
7 | 62153245643261502 |
oct | 5761307427545367 |
9 | 1015816504468833 |
10 | 210102223031031 |
11 | 60a439416025a1 |
12 | 1b693275480533 |
13 | 90307296603c6 |
14 | 39c5005128139 |
15 | 1945393487aa6 |
hex | bf163c5ecaf7 |
210102223031031 has 16 divisors (see below), whose sum is σ = 296615915108064. Its totient is φ = 131828396043264.
The previous prime is 210102223031009. The next prime is 210102223031039. The reversal of 210102223031031 is 130130322201012.
It is a de Polignac number, because none of the positive numbers 2k-210102223031031 is a prime.
It is a super-2 number, since 2×2101022230310312 (a number of 29 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 210102223030989 and 210102223031007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (210102223031039) 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, 8395251 + ... + 22151403.
It is an arithmetic number, because the mean of its divisors is an integer number (18538494694254).
Almost surely, 2210102223031031 is an apocalyptic number.
210102223031031 is a deficient number, since it is larger than the sum of its proper divisors (86513692077033).
210102223031031 is a wasteful number, since it uses less digits than its factorization.
210102223031031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14055650.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 210102223031031 its reverse (130130322201012), we get a palindrome (340232545232043).
The spelling of 210102223031031 in words is "two hundred ten trillion, one hundred two billion, two hundred twenty-three million, thirty-one thousand, thirty-one".
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