Base | Representation |
---|---|
bin | 10001001111111… |
… | …10001010001101 |
3 | 101002021022112020 |
4 | 20213332022031 |
5 | 244020232244 |
6 | 22205200353 |
7 | 3404616036 |
oct | 1047761215 |
9 | 332238466 |
10 | 144695949 |
11 | 7474a232 |
12 | 405600b9 |
13 | 23c92908 |
14 | 15307a8d |
15 | ca82d19 |
hex | 89fe28d |
144695949 has 4 divisors (see below), whose sum is σ = 192927936. Its totient is φ = 96463964.
The previous prime is 144695923. The next prime is 144695951. The reversal of 144695949 is 949596441.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949596441 = 3 ⋅316532147.
It is a cyclic number.
It is not a de Polignac number, because 144695949 - 25 = 144695917 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144695249) 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, 24115989 + ... + 24115994.
It is an arithmetic number, because the mean of its divisors is an integer number (48231984).
Almost surely, 2144695949 is an apocalyptic number.
It is an amenable number.
144695949 is a deficient number, since it is larger than the sum of its proper divisors (48231987).
144695949 is an equidigital number, since it uses as much as digits as its factorization.
144695949 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48231986.
The product of its digits is 1399680, while the sum is 51.
The square root of 144695949 is about 12028.9629228791. The cubic root of 144695949 is about 524.9913213985.
The spelling of 144695949 in words is "one hundred forty-four million, six hundred ninety-five thousand, nine hundred forty-nine".
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