Base | Representation |
---|---|
bin | 110111111000010010… |
… | …0011110100100001100 |
3 | 102110202000120100020010 |
4 | 1233300210132210030 |
5 | 3431230023224322 |
6 | 131043300553220 |
7 | 11445500652120 |
oct | 1576044364414 |
9 | 373660510203 |
10 | 120000211212 |
11 | 46989a99882 |
12 | 1b30b9b2810 |
13 | b41525c54b |
14 | 5b4539d580 |
15 | 31c4ee820c |
hex | 1bf091e90c |
120000211212 has 48 divisors (see below), whose sum is σ = 320019194880. Its totient is φ = 34283778432.
The previous prime is 120000211211. The next prime is 120000211223. The reversal of 120000211212 is 212112000021.
It is a super-2 number, since 2×1200002112122 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is not an unprimeable number, because it can be changed into a prime (120000211211) 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, 2006608 + ... + 2065544.
It is an arithmetic number, because the mean of its divisors is an integer number (6667066560).
Almost surely, 2120000211212 is an apocalyptic number.
120000211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
120000211212 is an abundant number, since it is smaller than the sum of its proper divisors (200018983668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120000211212 is a wasteful number, since it uses less digits than its factorization.
120000211212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83190 (or 83188 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 12.
Adding to 120000211212 its reverse (212112000021), we get a palindrome (332112211233).
The spelling of 120000211212 in words is "one hundred twenty billion, two hundred eleven thousand, two hundred twelve".
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