Base | Representation |
---|---|
bin | 10001010100000… |
… | …00110001001111 |
3 | 101010021111101020 |
4 | 20222000301033 |
5 | 244134342202 |
6 | 22224445223 |
7 | 3412304532 |
oct | 1052006117 |
9 | 333244336 |
10 | 145230927 |
11 | 74a85166 |
12 | 40779813 |
13 | 2411c27a |
14 | 15406a19 |
15 | cb3b5bc |
hex | 8a80c4f |
145230927 has 32 divisors (see below), whose sum is σ = 213158400. Its totient is φ = 87599232.
The previous prime is 145230913. The next prime is 145230931. The reversal of 145230927 is 729032541.
It is not a de Polignac number, because 145230927 - 214 = 145214543 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145230227) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169833 + ... + 170685.
It is an arithmetic number, because the mean of its divisors is an integer number (6661200).
Almost surely, 2145230927 is an apocalyptic number.
145230927 is a deficient number, since it is larger than the sum of its proper divisors (67927473).
145230927 is a wasteful number, since it uses less digits than its factorization.
145230927 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1007.
The product of its (nonzero) digits is 15120, while the sum is 33.
The square root of 145230927 is about 12051.1794858429. The cubic root of 145230927 is about 525.6375347920.
The spelling of 145230927 in words is "one hundred forty-five million, two hundred thirty thousand, nine hundred twenty-seven".
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