Base | Representation |
---|---|
bin | 1000001001110101… |
… | …1011100010100001 |
3 | 12122112112011202001 |
4 | 2002131123202201 |
5 | 13440310044212 |
6 | 1001104324001 |
7 | 105145044151 |
oct | 20235334241 |
9 | 5575464661 |
10 | 2188753057 |
11 | a23548627 |
12 | 511013601 |
13 | 28b5c436a |
14 | 16a990761 |
15 | cc249657 |
hex | 8275b8a1 |
2188753057 has 4 divisors (see below), whose sum is σ = 2195365936. Its totient is φ = 2182140180.
The previous prime is 2188753033. The next prime is 2188753129. The reversal of 2188753057 is 7503578812.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2188753057 - 231 = 41269409 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2188752998 and 2188753016.
It is not an unprimeable number, because it can be changed into a prime (2188757057) 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, 3305943 + ... + 3306604.
It is an arithmetic number, because the mean of its divisors is an integer number (548841484).
Almost surely, 22188753057 is an apocalyptic number.
It is an amenable number.
2188753057 is a deficient number, since it is larger than the sum of its proper divisors (6612879).
2188753057 is an equidigital number, since it uses as much as digits as its factorization.
2188753057 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6612878.
The product of its (nonzero) digits is 470400, while the sum is 46.
The square root of 2188753057 is about 46784.1111596662. Note that the first 4 decimals coincide. The cubic root of 2188753057 is about 1298.3713444767.
The spelling of 2188753057 in words is "two billion, one hundred eighty-eight million, seven hundred fifty-three thousand, fifty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •