Base | Representation |
---|---|
bin | 11011011011110… |
… | …00011011111011 |
3 | 121001000220000002 |
4 | 31231320123323 |
5 | 432403201301 |
6 | 34500303215 |
7 | 5463041114 |
oct | 1555703373 |
9 | 531026002 |
10 | 230131451 |
11 | 1089a3190 |
12 | 650a1b0b |
13 | 388a7074 |
14 | 227c720b |
15 | 1530c16b |
hex | db786fb |
230131451 has 4 divisors (see below), whose sum is σ = 251052504. Its totient is φ = 209210400.
The previous prime is 230131381. The next prime is 230131457. The reversal of 230131451 is 154131032.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 230131451 - 218 = 229869307 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230131457) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10460510 + ... + 10460531.
It is an arithmetic number, because the mean of its divisors is an integer number (62763126).
Almost surely, 2230131451 is an apocalyptic number.
230131451 is a deficient number, since it is larger than the sum of its proper divisors (20921053).
230131451 is a wasteful number, since it uses less digits than its factorization.
230131451 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20921052.
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 230131451 is about 15170.0840801889. The cubic root of 230131451 is about 612.8092685550.
Adding to 230131451 its reverse (154131032), we get a palindrome (384262483).
The spelling of 230131451 in words is "two hundred thirty million, one hundred thirty-one thousand, four hundred fifty-one".
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