Base | Representation |
---|---|
bin | 100100101010100… |
… | …0010000111010111 |
3 | 10011201221012100200 |
4 | 1021111002013113 |
5 | 10004421003310 |
6 | 322024311543 |
7 | 42325646010 |
oct | 11125020727 |
9 | 3151835320 |
10 | 1230250455 |
11 | 581498415 |
12 | 2a40125b3 |
13 | 167b56465 |
14 | b9566007 |
15 | 730139c0 |
hex | 495421d7 |
1230250455 has 48 divisors (see below), whose sum is σ = 2442173760. Its totient is φ = 561222144.
The previous prime is 1230250453. The next prime is 1230250459. The reversal of 1230250455 is 5540520321.
It is a happy number.
It is not a de Polignac number, because 1230250455 - 21 = 1230250453 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230250453) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156499 + ... + 164171.
It is an arithmetic number, because the mean of its divisors is an integer number (50878620).
Almost surely, 21230250455 is an apocalyptic number.
1230250455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1230250455 is a deficient number, since it is larger than the sum of its proper divisors (1211923305).
1230250455 is a wasteful number, since it uses less digits than its factorization.
1230250455 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8200 (or 8197 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 27.
The square root of 1230250455 is about 35074.9263007066. The cubic root of 1230250455 is about 1071.5139877426.
Adding to 1230250455 its reverse (5540520321), we get a palindrome (6770770776).
The spelling of 1230250455 in words is "one billion, two hundred thirty million, two hundred fifty thousand, four hundred fifty-five".
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