Base | Representation |
---|---|
bin | 10001010010000… |
… | …00110111101001 |
3 | 101002210012100101 |
4 | 20221000313221 |
5 | 244103003233 |
6 | 22215105401 |
7 | 3410134465 |
oct | 1051006751 |
9 | 332705311 |
10 | 144969193 |
11 | 74916556 |
12 | 40672261 |
13 | 2405a0b5 |
14 | 153794a5 |
15 | cad8c7d |
hex | 8a40de9 |
144969193 has 8 divisors (see below), whose sum is σ = 146155968. Its totient is φ = 143786544.
The previous prime is 144969157. The next prime is 144969199. The reversal of 144969193 is 391969441.
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 144969193 - 213 = 144961001 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (144969199) 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, 128530 + ... + 129652.
It is an arithmetic number, because the mean of its divisors is an integer number (18269496).
Almost surely, 2144969193 is an apocalyptic number.
It is an amenable number.
144969193 is a deficient number, since it is larger than the sum of its proper divisors (1186775).
144969193 is a wasteful number, since it uses less digits than its factorization.
144969193 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2063.
The product of its digits is 209952, while the sum is 46.
The square root of 144969193 is about 12040.3153197913. The cubic root of 144969193 is about 525.3215783424.
The spelling of 144969193 in words is "one hundred forty-four million, nine hundred sixty-nine thousand, one hundred ninety-three".
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