Base | Representation |
---|---|
bin | 10010111101101111… |
… | …100011101110111101 |
3 | 1221120011000021022221 |
4 | 102331233203232331 |
5 | 313200441331031 |
6 | 13204342405341 |
7 | 1320422412622 |
oct | 227557435675 |
9 | 57504007287 |
10 | 20363230141 |
11 | 86aa570221 |
12 | 3b43730851 |
13 | 1bc6a13a07 |
14 | db2638349 |
15 | 7e2ab9a11 |
hex | 4bdbe3bbd |
20363230141 has 4 divisors (see below), whose sum is σ = 20364634492. Its totient is φ = 20361825792.
The previous prime is 20363230103. The next prime is 20363230163. The reversal of 20363230141 is 14103236302.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14103236302 = 2 ⋅7051618151.
It can be written as a sum of positive squares in 2 ways, for example, as 16944489241 + 3418740900 = 130171^2 + 58470^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20363230141 is a prime.
It is a super-2 number, since 2×203632301412 (a number of 21 digits) 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 (20363200141) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680196 + ... + 709501.
It is an arithmetic number, because the mean of its divisors is an integer number (5091158623).
Almost surely, 220363230141 is an apocalyptic number.
It is an amenable number.
20363230141 is a deficient number, since it is larger than the sum of its proper divisors (1404351).
20363230141 is a wasteful number, since it uses less digits than its factorization.
20363230141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1404350.
The product of its (nonzero) digits is 2592, while the sum is 25.
Adding to 20363230141 its reverse (14103236302), we get a palindrome (34466466443).
The spelling of 20363230141 in words is "twenty billion, three hundred sixty-three million, two hundred thirty thousand, one hundred forty-one".
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