Base | Representation |
---|---|
bin | 10010101000001110… |
… | …011100111110000001 |
3 | 1220121222201120102201 |
4 | 102220032130332001 |
5 | 311431032331040 |
6 | 13104445113201 |
7 | 1305450102532 |
oct | 225016347601 |
9 | 56558646381 |
10 | 20002230145 |
11 | 8534812617 |
12 | 3a62858801 |
13 | 1b69ca8a51 |
14 | d7a706689 |
15 | 7c105ba9a |
hex | 4a839cf81 |
20002230145 has 8 divisors (see below), whose sum is σ = 25265975040. Its totient is φ = 15159584880.
The previous prime is 20002230139. The next prime is 20002230203. The reversal of 20002230145 is 54103220002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-20002230145 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (19).
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, 105274801 + ... + 105274990.
It is an arithmetic number, because the mean of its divisors is an integer number (3158246880).
Almost surely, 220002230145 is an apocalyptic number.
It is an amenable number.
20002230145 is a deficient number, since it is larger than the sum of its proper divisors (5263744895).
20002230145 is a wasteful number, since it uses less digits than its factorization.
20002230145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 210549815.
The product of its (nonzero) digits is 480, while the sum is 19.
Adding to 20002230145 its reverse (54103220002), we get a palindrome (74105450147).
The spelling of 20002230145 in words is "twenty billion, two million, two hundred thirty thousand, one hundred forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •