Base | Representation |
---|---|
bin | 100100101010100… |
… | …0011010101011101 |
3 | 10011201221110012210 |
4 | 1021111003111131 |
5 | 10004421133303 |
6 | 322024351033 |
7 | 42325666410 |
oct | 11125032535 |
9 | 3151843183 |
10 | 1230255453 |
11 | 5814a1149 |
12 | 2a4015479 |
13 | 167b5880b |
14 | b9567b77 |
15 | 73015203 |
hex | 4954355d |
1230255453 has 32 divisors (see below), whose sum is σ = 1988490240. Its totient is φ = 660890880.
The previous prime is 1230255449. The next prime is 1230255461. The reversal of 1230255453 is 3545520321.
It is not a de Polignac number, because 1230255453 - 22 = 1230255449 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1230255453.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230255463) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40501 + ... + 64037.
It is an arithmetic number, because the mean of its divisors is an integer number (62140320).
Almost surely, 21230255453 is an apocalyptic number.
It is an amenable number.
1230255453 is a deficient number, since it is larger than the sum of its proper divisors (758234787).
1230255453 is a wasteful number, since it uses less digits than its factorization.
1230255453 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23697.
The product of its (nonzero) digits is 18000, while the sum is 30.
The square root of 1230255453 is about 35074.9975481111. The cubic root of 1230255453 is about 1071.5154387804.
Adding to 1230255453 its reverse (3545520321), we get a palindrome (4775775774).
The spelling of 1230255453 in words is "one billion, two hundred thirty million, two hundred fifty-five thousand, four hundred fifty-three".
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