Base | Representation |
---|---|
bin | 1100010101110001000… |
… | …0011010001110111010 |
3 | 202021012201122222020020 |
4 | 3011130100122032322 |
5 | 11433134302000010 |
6 | 241220401311310 |
7 | 21213405331263 |
oct | 3053420321672 |
9 | 667181588206 |
10 | 212001203130 |
11 | 81a001747a2 |
12 | 35106935536 |
13 | 16cb77b54c2 |
14 | a391d3396a |
15 | 57abd81470 |
hex | 315c41a3ba |
212001203130 has 32 divisors (see below), whose sum is σ = 508887105984. Its totient is φ = 56524296576.
The previous prime is 212001203111. The next prime is 212001203131. The reversal of 212001203130 is 31302100212.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is not an unprimeable number, because it can be changed into a prime (212001203131) 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, 399624 + ... + 764003.
It is an arithmetic number, because the mean of its divisors is an integer number (15902722062).
Almost surely, 2212001203130 is an apocalyptic number.
212001203130 is an abundant number, since it is smaller than the sum of its proper divisors (296885902854).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212001203130 is a wasteful number, since it uses less digits than its factorization.
212001203130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1169710.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 212001203130 its reverse (31302100212), we get a palindrome (243303303342).
The spelling of 212001203130 in words is "two hundred twelve billion, one million, two hundred three thousand, one hundred thirty".
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