Base | Representation |
---|---|
bin | 1100010101111100111… |
… | …1101001010101111000 |
3 | 202021100012222220120101 |
4 | 3011133033221111320 |
5 | 11433240120201040 |
6 | 241225352005144 |
7 | 21214554414034 |
oct | 3053717512570 |
9 | 667305886511 |
10 | 212051334520 |
11 | 81a264a51a3 |
12 | 3511b6907b4 |
13 | 16cc4cb864c |
14 | a3988631c4 |
15 | 57b148509a |
hex | 315f3e9578 |
212051334520 has 64 divisors (see below), whose sum is σ = 501493965120. Its totient is φ = 80540427264.
The previous prime is 212051334493. The next prime is 212051334553. The reversal of 212051334520 is 25433150212.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715167 + ... + 967246.
It is an arithmetic number, because the mean of its divisors is an integer number (7835843205).
Almost surely, 2212051334520 is an apocalyptic number.
212051334520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
212051334520 is an abundant number, since it is smaller than the sum of its proper divisors (289442630600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212051334520 is a wasteful number, since it uses less digits than its factorization.
212051334520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1682584 (or 1682580 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 28.
Adding to 212051334520 its reverse (25433150212), we get a palindrome (237484484732).
The spelling of 212051334520 in words is "two hundred twelve billion, fifty-one million, three hundred thirty-four thousand, five hundred twenty".
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