| Base | Representation |
|---|---|
| bin | 1111111000010… |
| … | …10010001100000 |
| 3 | 100021122211110100 |
| 4 | 13330022101200 |
| 5 | 233100224412 |
| 6 | 21115102400 |
| 7 | 3205163640 |
| oct | 774122140 |
| 9 | 307584410 |
| 10 | 133211232 |
| 11 | 69215630 |
| 12 | 38741a00 |
| 13 | 217a131b |
| 14 | 13998520 |
| 15 | ba64edc |
| hex | 7f0a460 |
133211232 has 144 divisors (see below), whose sum is σ = 472372992. Its totient is φ = 34594560.
The previous prime is 133211219. The next prime is 133211233. The reversal of 133211232 is 232112331.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (133211233) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19173 + ... + 25179.
It is an arithmetic number, because the mean of its divisors is an integer number (3280368).
Almost surely, 2133211232 is an apocalyptic number.
133211232 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 133211232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236186496).
133211232 is an abundant number, since it is smaller than the sum of its proper divisors (339161760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
133211232 is a wasteful number, since it uses less digits than its factorization.
133211232 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6041 (or 6030 counting only the distinct ones).
The product of its digits is 216, while the sum is 18.
The square root of 133211232 is about 11541.7170299744. The cubic root of 133211232 is about 510.7169616295.
Adding to 133211232 its reverse (232112331), we get a palindrome (365323563).
It can be divided in two parts, 1 and 33211232, that added together give a palindrome (33211233).
The spelling of 133211232 in words is "one hundred thirty-three million, two hundred eleven thousand, two hundred thirty-two".
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