Base | Representation |
---|---|
bin | 10001010011000… |
… | …11011111100011 |
3 | 101010001101212220 |
4 | 20221203133203 |
5 | 244122023021 |
6 | 22222122123 |
7 | 3411265113 |
oct | 1051433743 |
9 | 333041786 |
10 | 145111011 |
11 | 74a03061 |
12 | 40720343 |
13 | 240a9806 |
14 | 153b5043 |
15 | cb15cc6 |
hex | 8a637e3 |
145111011 has 8 divisors (see below), whose sum is σ = 193923840. Its totient is φ = 96519432.
The previous prime is 145110989. The next prime is 145111027. The reversal of 145111011 is 110111541.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 145111011 - 29 = 145110499 is a prime.
It is not an unprimeable number, because it can be changed into a prime (145111411) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53775 + ... + 56408.
It is an arithmetic number, because the mean of its divisors is an integer number (24240480).
Almost surely, 2145111011 is an apocalyptic number.
145111011 is a deficient number, since it is larger than the sum of its proper divisors (48812829).
145111011 is a wasteful number, since it uses less digits than its factorization.
145111011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 110625.
The product of its (nonzero) digits is 20, while the sum is 15.
The square root of 145111011 is about 12046.2031777652. The cubic root of 145111011 is about 525.4928234042.
Adding to 145111011 its reverse (110111541), we get a palindrome (255222552).
It can be divided in two parts, 145 and 111011, that added together give a triangular number (111156 = T471).
The spelling of 145111011 in words is "one hundred forty-five million, one hundred eleven thousand, eleven".
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