Base | Representation |
---|---|
bin | 10001010011000… |
… | …01110011010111 |
3 | 101010001001101110 |
4 | 20221201303113 |
5 | 244121312322 |
6 | 22222030103 |
7 | 3411235662 |
oct | 1051416327 |
9 | 333031343 |
10 | 145104087 |
11 | 749a8937 |
12 | 40718333 |
13 | 240a660b |
14 | 153b26d9 |
15 | cb13c0c |
hex | 8a61cd7 |
145104087 has 32 divisors (see below), whose sum is σ = 206807040. Its totient is φ = 90351360.
The previous prime is 145104077. The next prime is 145104107. The reversal of 145104087 is 780401541.
145104087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 145104087 - 218 = 144841943 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145104077) 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, 388833 + ... + 389205.
It is an arithmetic number, because the mean of its divisors is an integer number (6462720).
Almost surely, 2145104087 is an apocalyptic number.
145104087 is a deficient number, since it is larger than the sum of its proper divisors (61702953).
145104087 is a wasteful number, since it uses less digits than its factorization.
145104087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 543.
The product of its (nonzero) digits is 4480, while the sum is 30.
The square root of 145104087 is about 12045.9157808778. The cubic root of 145104087 is about 525.4844652739.
The spelling of 145104087 in words is "one hundred forty-five million, one hundred four thousand, eighty-seven".
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