Base | Representation |
---|---|
bin | 100111000111… |
… | …0100110000110 |
3 | 1102120212100001 |
4 | 1032032212012 |
5 | 20222211024 |
6 | 2011311514 |
7 | 336210133 |
oct | 116164606 |
9 | 42525301 |
10 | 20507014 |
11 | 10637250 |
12 | 6a4b59a |
13 | 4330138 |
14 | 2a1b58a |
15 | 1c01244 |
hex | 138e986 |
20507014 has 24 divisors (see below), whose sum is σ = 34320312. Its totient is φ = 9112320.
The previous prime is 20507009. The next prime is 20507017. The reversal of 20507014 is 41070502.
It is a super-3 number, since 3×205070143 (a number of 23 digits) contains 333 as substring.
It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 20506982 and 20507000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20507017) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181422 + ... + 181534.
It is an arithmetic number, because the mean of its divisors is an integer number (1430013).
Almost surely, 220507014 is an apocalyptic number.
20507014 is a deficient number, since it is larger than the sum of its proper divisors (13813298).
20507014 is a wasteful number, since it uses less digits than its factorization.
20507014 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 312 (or 199 counting only the distinct ones).
The product of its (nonzero) digits is 280, while the sum is 19.
The square root of 20507014 is about 4528.4670695501. The cubic root of 20507014 is about 273.7163936422.
Adding to 20507014 its reverse (41070502), we get a palindrome (61577516).
The spelling of 20507014 in words is "twenty million, five hundred seven thousand, fourteen".
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