| Base | Representation |
|---|---|
| bin | 1111110110110… |
| … | …01101011110100 |
| 3 | 100021021201110020 |
| 4 | 13323121223310 |
| 5 | 233022342322 |
| 6 | 21110525140 |
| 7 | 3203404464 |
| oct | 773315364 |
| 9 | 307251406 |
| 10 | 133012212 |
| 11 | 6909a053 |
| 12 | 386667b0 |
| 13 | 21731868 |
| 14 | 13945ba4 |
| 15 | ba2605c |
| hex | 7ed9af4 |
133012212 has 48 divisors (see below), whose sum is σ = 322358400. Its totient is φ = 42636160.
The previous prime is 133012211. The next prime is 133012213. The reversal of 133012212 is 212210331.
It is an interprime number because it is at equal distance from previous prime (133012211) and next prime (133012213).
It is a super-2 number, since 2×1330122122 = 35384497082265888, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 133012191 and 133012200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (133012211) 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, 107614 + ... + 108842.
It is an arithmetic number, because the mean of its divisors is an integer number (6715800).
Almost surely, 2133012212 is an apocalyptic number.
133012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 133012212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161179200).
133012212 is an abundant number, since it is smaller than the sum of its proper divisors (189346188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
133012212 is a wasteful number, since it uses less digits than its factorization.
133012212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1576 (or 1574 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 133012212 is about 11533.0920398651. The cubic root of 133012212 is about 510.4624947225.
Adding to 133012212 its reverse (212210331), we get a palindrome (345222543).
The spelling of 133012212 in words is "one hundred thirty-three million, twelve thousand, two hundred twelve".
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