Base | Representation |
---|---|
bin | 1100010110100000110… |
… | …1111110010101001100 |
3 | 202021201201021222102210 |
4 | 3011220031332111030 |
5 | 11434042141004043 |
6 | 241252330550420 |
7 | 21221363212452 |
oct | 3055015762514 |
9 | 667651258383 |
10 | 212201891148 |
11 | 81aa3487665 |
12 | 35161b98410 |
13 | 1701a250a00 |
14 | a3b08549d2 |
15 | 57be7c4633 |
hex | 316837e54c |
212201891148 has 36 divisors (see below), whose sum is σ = 536155079208. Its totient is φ = 65292888960.
The previous prime is 212201891137. The next prime is 212201891149. The reversal of 212201891148 is 841198102212.
212201891148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is not an unprimeable number, because it can be changed into a prime (212201891149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52315993 + ... + 52320048.
Almost surely, 2212201891148 is an apocalyptic number.
It is an amenable number.
212201891148 is an abundant number, since it is smaller than the sum of its proper divisors (323953188060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212201891148 is a wasteful number, since it uses less digits than its factorization.
212201891148 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 104636074 (or 104636059 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 39.
The spelling of 212201891148 in words is "two hundred twelve billion, two hundred one million, eight hundred ninety-one thousand, one hundred forty-eight".
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