Base | Representation |
---|---|
bin | 111110000111010111… |
… | …0101101010111000101 |
3 | 110202022020220120020112 |
4 | 1330032232231113011 |
5 | 4141141111032441 |
6 | 141140134242405 |
7 | 12431361512105 |
oct | 1741656552705 |
9 | 422266816215 |
10 | 133391111621 |
11 | 51630894519 |
12 | 21a284b6405 |
13 | c76a607a61 |
14 | 6655a01205 |
15 | 370a9124eb |
hex | 1f0ebad5c5 |
133391111621 has 16 divisors (see below), whose sum is σ = 136599810048. Its totient is φ = 130220554800.
The previous prime is 133391111537. The next prime is 133391111647. The reversal of 133391111621 is 126111193331.
It is a cyclic number.
It is not a de Polignac number, because 133391111621 - 230 = 132317369797 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (133391111671) 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, 27886196 + ... + 27890978.
It is an arithmetic number, because the mean of its divisors is an integer number (8537488128).
Almost surely, 2133391111621 is an apocalyptic number.
It is an amenable number.
133391111621 is a deficient number, since it is larger than the sum of its proper divisors (3208698427).
133391111621 is a wasteful number, since it uses less digits than its factorization.
133391111621 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8632.
The product of its digits is 2916, while the sum is 32.
The spelling of 133391111621 in words is "one hundred thirty-three billion, three hundred ninety-one million, one hundred eleven thousand, six hundred twenty-one".
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