Base | Representation |
---|---|
bin | 100111100101… |
… | …1001001000010 |
3 | 1110001110112002 |
4 | 1033023021002 |
5 | 20303130020 |
6 | 2020504002 |
7 | 341262143 |
oct | 117131102 |
9 | 43043462 |
10 | 20755010 |
11 | 10796601 |
12 | 6b4b002 |
13 | 43b8c93 |
14 | 2a83aca |
15 | 1c4e975 |
hex | 13cb242 |
20755010 has 16 divisors (see below), whose sum is σ = 38647800. Its totient is φ = 8015616.
The previous prime is 20755001. The next prime is 20755019. The reversal of 20755010 is 1055702.
20755010 is nontrivially palindromic in base 7.
It is an interprime number because it is at equal distance from previous prime (20755001) and next prime (20755019).
It can be written as a sum of positive squares in 4 ways, for example, as 18983449 + 1771561 = 4357^2 + 1331^2 .
It is not an unprimeable number, because it can be changed into a prime (20755019) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35495 + ... + 36074.
Almost surely, 220755010 is an apocalyptic number.
20755010 is a deficient number, since it is larger than the sum of its proper divisors (17892790).
20755010 is a wasteful number, since it uses less digits than its factorization.
20755010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71605.
The product of its (nonzero) digits is 350, while the sum is 20.
The square root of 20755010 is about 4555.7666753248. The cubic root of 20755010 is about 274.8153471142.
The spelling of 20755010 in words is "twenty million, seven hundred fifty-five thousand, ten".
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