Base | Representation |
---|---|
bin | 1100001110110010111… |
… | …1100110010110010111 |
3 | 202002101100021211012000 |
4 | 3003230233212112113 |
5 | 11420321331043111 |
6 | 240311010130343 |
7 | 21116140225545 |
oct | 3035457462627 |
9 | 662340254160 |
10 | 210130331031 |
11 | 81130103905 |
12 | 348842809b3 |
13 | 16a7a00c9aa |
14 | a25568cd95 |
15 | 56ec9c8c56 |
hex | 30ecbe6597 |
210130331031 has 16 divisors (see below), whose sum is σ = 317177860320. Its totient is φ = 137443737600.
The previous prime is 210130331023. The next prime is 210130331041. The reversal of 210130331031 is 130133031012.
It is a happy number.
210130331031 is a `hidden beast` number, since 21 + 0 + 1 + 303 + 310 + 31 = 666.
It is not a de Polignac number, because 210130331031 - 23 = 210130331023 is a prime.
It is a super-2 number, since 2×2101303310312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 210130330995 and 210130331013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (210130331041) 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, 73419370 + ... + 73422231.
It is an arithmetic number, because the mean of its divisors is an integer number (19823616270).
Almost surely, 2210130331031 is an apocalyptic number.
210130331031 is a deficient number, since it is larger than the sum of its proper divisors (107047529289).
210130331031 is a wasteful number, since it uses less digits than its factorization.
210130331031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 146841663 (or 146841657 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 210130331031 its reverse (130133031012), we get a palindrome (340263362043).
The spelling of 210130331031 in words is "two hundred ten billion, one hundred thirty million, three hundred thirty-one thousand, thirty-one".
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