Base | Representation |
---|---|
bin | 100110001110… |
… | …0001101011111 |
3 | 1101201001122111 |
4 | 1030130031133 |
5 | 20112212440 |
6 | 1553254451 |
7 | 332216161 |
oct | 114341537 |
9 | 41631574 |
10 | 20038495 |
11 | 10347244 |
12 | 6864427 |
13 | 41c7ac9 |
14 | 2938931 |
15 | 1b5c4ea |
hex | 131c35f |
20038495 has 8 divisors (see below), whose sum is σ = 25460784. Its totient is φ = 15087744.
The previous prime is 20038481. The next prime is 20038531. The reversal of 20038495 is 59483002.
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 20038495 - 27 = 20038367 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117789 + ... + 117958.
It is an arithmetic number, because the mean of its divisors is an integer number (3182598).
Almost surely, 220038495 is an apocalyptic number.
20038495 is a deficient number, since it is larger than the sum of its proper divisors (5422289).
20038495 is a wasteful number, since it uses less digits than its factorization.
20038495 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 235769.
The product of its (nonzero) digits is 8640, while the sum is 31.
The square root of 20038495 is about 4476.4377578606. The cubic root of 20038495 is about 271.6158025557.
The spelling of 20038495 in words is "twenty million, thirty-eight thousand, four hundred ninety-five".
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