Base | Representation |
---|---|
bin | 111111111011111… |
… | …0111011001010010 |
3 | 12112111212010122201 |
4 | 1333313313121102 |
5 | 13343202220000 |
6 | 552514153414 |
7 | 104110120240 |
oct | 17767673122 |
9 | 5474763581 |
10 | 2145351250 |
11 | a00aa4169 |
12 | 4ba58286a |
13 | 282609313 |
14 | 164cd3790 |
15 | c852496a |
hex | 7fdf7652 |
2145351250 has 40 divisors (see below), whose sum is σ = 4595728896. Its totient is φ = 735546000.
The previous prime is 2145351223. The next prime is 2145351283. The reversal of 2145351250 is 521535412.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 113842 + ... + 131341.
Almost surely, 22145351250 is an apocalyptic number.
2145351250 is an abundant number, since it is smaller than the sum of its proper divisors (2450377646).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2145351250 is an equidigital number, since it uses as much as digits as its factorization.
2145351250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 245212 (or 245197 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 28.
The square root of 2145351250 is about 46317.9365904830. The cubic root of 2145351250 is about 1289.7319816562.
Adding to 2145351250 its reverse (521535412), we get a palindrome (2666886662).
It can be divided in two parts, 2 and 145351250, that multiplied together give a square (290702500 = 170502).
The spelling of 2145351250 in words is "two billion, one hundred forty-five million, three hundred fifty-one thousand, two hundred fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •