Base | Representation |
---|---|
bin | 1100011001100001100… |
… | …0101101011101111111 |
3 | 202100211000220202212212 |
4 | 3012120120231131333 |
5 | 11442221030341111 |
6 | 241504435451035 |
7 | 21250405141145 |
oct | 3063030553577 |
9 | 670730822785 |
10 | 213010012031 |
11 | 82378664863 |
12 | 35348756a7b |
13 | 171187b804b |
14 | a449cd5595 |
15 | 581a70298b |
hex | 319862d77f |
213010012031 has 8 divisors (see below), whose sum is σ = 213388646400. Its totient is φ = 212631455608.
The previous prime is 213010012013. The next prime is 213010012081. The reversal of 213010012031 is 130210010312.
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 213010012031 - 210 = 213010011007 is a prime.
It is a super-2 number, since 2×2130100120312 (a number of 23 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 = 213010011997 and 213010012015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213010012081) 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, 9361190 + ... + 9383916.
It is an arithmetic number, because the mean of its divisors is an integer number (26673580800).
Almost surely, 2213010012031 is an apocalyptic number.
213010012031 is a deficient number, since it is larger than the sum of its proper divisors (378634369).
213010012031 is a wasteful number, since it uses less digits than its factorization.
213010012031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38973.
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 213010012031 its reverse (130210010312), we get a palindrome (343220022343).
The spelling of 213010012031 in words is "two hundred thirteen billion, ten million, twelve thousand, thirty-one".
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