Base | Representation |
---|---|
bin | 100100011100101… |
… | …1111100111010010 |
3 | 10011020100102110201 |
4 | 1020321133213102 |
5 | 10001044000000 |
6 | 321205445414 |
7 | 42210410530 |
oct | 11071374722 |
9 | 3136312421 |
10 | 1223031250 |
11 | 578407531 |
12 | 2a171086a |
13 | 1664c953c |
14 | b8607150 |
15 | 7258996a |
hex | 48e5f9d2 |
1223031250 has 56 divisors (see below), whose sum is σ = 2621216448. Its totient is φ = 419250000.
The previous prime is 1223031247. The next prime is 1223031253. The reversal of 1223031250 is 521303221.
It is an interprime number because it is at equal distance from previous prime (1223031247) and next prime (1223031253).
It is not an unprimeable number, because it can be changed into a prime (1223031253) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 215955 + ... + 221545.
Almost surely, 21223031250 is an apocalyptic number.
1223031250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1223031250 is an abundant number, since it is smaller than the sum of its proper divisors (1398185198).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1223031250 is an frugal number, since it uses more digits than its factorization.
1223031250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5630 (or 5605 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 1223031250 is about 34971.8636906871. The cubic root of 1223031250 is about 1069.4139656362.
Adding to 1223031250 its reverse (521303221), we get a palindrome (1744334471).
The spelling of 1223031250 in words is "one billion, two hundred twenty-three million, thirty-one thousand, two hundred fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •