Base | Representation |
---|---|
bin | 100111011111… |
… | …1011100010111 |
3 | 1102222000210110 |
4 | 1032333130113 |
5 | 20300111340 |
6 | 2015454103 |
7 | 341002353 |
oct | 116773427 |
9 | 42860713 |
10 | 20707095 |
11 | 10763602 |
12 | 6b27333 |
13 | 43a0226 |
14 | 2a70463 |
15 | 1c40680 |
hex | 13bf717 |
20707095 has 16 divisors (see below), whose sum is σ = 33229152. Its totient is φ = 11011200.
The previous prime is 20707081. The next prime is 20707097. The reversal of 20707095 is 59070702.
It is a happy number.
It is not a de Polignac number, because 20707095 - 29 = 20706583 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20707097) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3745 + ... + 7445.
It is an arithmetic number, because the mean of its divisors is an integer number (2076822).
Almost surely, 220707095 is an apocalyptic number.
20707095 is a deficient number, since it is larger than the sum of its proper divisors (12522057).
20707095 is a wasteful number, since it uses less digits than its factorization.
20707095 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4082.
The product of its (nonzero) digits is 4410, while the sum is 30.
The square root of 20707095 is about 4550.5049170394. The cubic root of 20707095 is about 274.6037046655.
Adding to 20707095 its reverse (59070702), we get a palindrome (79777797).
The spelling of 20707095 in words is "twenty million, seven hundred seven thousand, ninety-five".
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