Base | Representation |
---|---|
bin | 111011010011… |
… | …1100000000101 |
3 | 2011111210000212 |
4 | 1312213200011 |
5 | 30430013124 |
6 | 3030245205 |
7 | 525205235 |
oct | 166474005 |
9 | 64453025 |
10 | 31094789 |
11 | 16608a80 |
12 | a4b6805 |
13 | 65993ab |
14 | 41b5cc5 |
15 | 2ae340e |
hex | 1da7805 |
31094789 has 8 divisors (see below), whose sum is σ = 33984768. Its totient is φ = 28215360.
The previous prime is 31094783. The next prime is 31094797. The reversal of 31094789 is 98749013.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31094789 - 216 = 31029253 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31094783) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4349 + ... + 9005.
It is an arithmetic number, because the mean of its divisors is an integer number (4248096).
Almost surely, 231094789 is an apocalyptic number.
It is an amenable number.
31094789 is a deficient number, since it is larger than the sum of its proper divisors (2889979).
31094789 is a wasteful number, since it uses less digits than its factorization.
31094789 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5275.
The product of its (nonzero) digits is 54432, while the sum is 41.
The square root of 31094789 is about 5576.2701692081. The cubic root of 31094789 is about 314.4579204529.
The spelling of 31094789 in words is "thirty-one million, ninety-four thousand, seven hundred eighty-nine".
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