Base | Representation |
---|---|
bin | 10000111111101… |
… | …00101110010101 |
3 | 100221020210202112 |
4 | 20133310232111 |
5 | 242443411044 |
6 | 22051320405 |
7 | 3350512154 |
oct | 1037645625 |
9 | 327223675 |
10 | 142560149 |
11 | 73520606 |
12 | 3b8b0105 |
13 | 236c5724 |
14 | 14d0d59b |
15 | c7b009e |
hex | 87f4b95 |
142560149 has 8 divisors (see below), whose sum is σ = 146592600. Its totient is φ = 138537216.
The previous prime is 142560139. The next prime is 142560163. The reversal of 142560149 is 941065241.
It can be written as a sum of positive squares in 4 ways, for example, as 44649124 + 97911025 = 6682^2 + 9895^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 142560149 - 224 = 125782933 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142560139) 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, 36977 + ... + 40649.
It is an arithmetic number, because the mean of its divisors is an integer number (18324075).
Almost surely, 2142560149 is an apocalyptic number.
It is an amenable number.
142560149 is a deficient number, since it is larger than the sum of its proper divisors (4032451).
142560149 is a wasteful number, since it uses less digits than its factorization.
142560149 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4759.
The product of its (nonzero) digits is 8640, while the sum is 32.
The square root of 142560149 is about 11939.8554848876. The cubic root of 142560149 is about 522.3954434683.
The spelling of 142560149 in words is "one hundred forty-two million, five hundred sixty thousand, one hundred forty-nine".
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