Base | Representation |
---|---|
bin | 10001010010101… |
… | …00011010011001 |
3 | 101002221021011010 |
4 | 20221110122121 |
5 | 244113033431 |
6 | 22220524133 |
7 | 3410620041 |
oct | 1051243231 |
9 | 332837133 |
10 | 145049241 |
11 | 74970707 |
12 | 406b0649 |
13 | 2408766c |
14 | 1539a721 |
15 | cb02846 |
hex | 8a54699 |
145049241 has 16 divisors (see below), whose sum is σ = 196746368. Its totient is φ = 95040000.
The previous prime is 145049209. The next prime is 145049251. The reversal of 145049241 is 142940541.
It is not a de Polignac number, because 145049241 - 25 = 145049209 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 145049199 and 145049208.
It is not an unprimeable number, because it can be changed into a prime (145049251) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42291 + ... + 45591.
It is an arithmetic number, because the mean of its divisors is an integer number (12296648).
Almost surely, 2145049241 is an apocalyptic number.
It is an amenable number.
145049241 is a deficient number, since it is larger than the sum of its proper divisors (51697127).
145049241 is a wasteful number, since it uses less digits than its factorization.
145049241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3552.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 145049241 is about 12043.6390264737. The cubic root of 145049241 is about 525.4182499258.
Adding to 145049241 its reverse (142940541), we get a palindrome (287989782).
The spelling of 145049241 in words is "one hundred forty-five million, forty-nine thousand, two hundred forty-one".
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