Base | Representation |
---|---|
bin | 10001010001111… |
… | …00011100011111 |
3 | 101002202021111012 |
4 | 20220330130133 |
5 | 244101413241 |
6 | 22214445435 |
7 | 3410030606 |
oct | 1050743437 |
9 | 332667435 |
10 | 144951071 |
11 | 74903981 |
12 | 4066387b |
13 | 24051a85 |
14 | 15372a3d |
15 | cad36eb |
hex | 8a3c71f |
144951071 has 4 divisors (see below), whose sum is σ = 149626944. Its totient is φ = 140275200.
The previous prime is 144951047. The next prime is 144951073. The reversal of 144951071 is 170159441.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170159441 = 691 ⋅246251.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-144951071 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 (144951073) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2337890 + ... + 2337951.
It is an arithmetic number, because the mean of its divisors is an integer number (37406736).
Almost surely, 2144951071 is an apocalyptic number.
144951071 is a deficient number, since it is larger than the sum of its proper divisors (4675873).
144951071 is an equidigital number, since it uses as much as digits as its factorization.
144951071 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4675872.
The product of its (nonzero) digits is 5040, while the sum is 32.
The square root of 144951071 is about 12039.5627412294. The cubic root of 144951071 is about 525.2996880033.
The spelling of 144951071 in words is "one hundred forty-four million, nine hundred fifty-one thousand, seventy-one".
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