Base | Representation |
---|---|
bin | 100110001111… |
… | …1111101110101 |
3 | 1101201211202012 |
4 | 1030133331311 |
5 | 20113211002 |
6 | 1553454005 |
7 | 332312054 |
oct | 114377565 |
9 | 41654665 |
10 | 20053877 |
11 | 10357858 |
12 | 6871305 |
13 | 4201acc |
14 | 294039b |
15 | 1b61d52 |
hex | 131ff75 |
20053877 has 8 divisors (see below), whose sum is σ = 20962200. Its totient is φ = 19160064.
The previous prime is 20053871. The next prime is 20053883. The reversal of 20053877 is 77835002.
It is an interprime number because it is at equal distance from previous prime (20053871) and next prime (20053883).
It can be written as a sum of positive squares in 4 ways, for example, as 3740356 + 16313521 = 1934^2 + 4039^2 .
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 20053877 - 212 = 20049781 is a prime.
It is a super-2 number, since 2×200538772 = 804315965462258, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20053871) 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 7 ways as a sum of consecutive naturals, for example, 752 + ... + 6377.
It is an arithmetic number, because the mean of its divisors is an integer number (2620275).
Almost surely, 220053877 is an apocalyptic number.
It is an amenable number.
20053877 is a deficient number, since it is larger than the sum of its proper divisors (908323).
20053877 is an equidigital number, since it uses as much as digits as its factorization.
20053877 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7255.
The product of its (nonzero) digits is 11760, while the sum is 32.
The square root of 20053877 is about 4478.1555354856. The cubic root of 20053877 is about 271.6852842490.
Adding to 20053877 its reverse (77835002), we get a palindrome (97888879).
The spelling of 20053877 in words is "twenty million, fifty-three thousand, eight hundred seventy-seven".
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