Base | Representation |
---|---|
bin | 10001010010000… |
… | …11010000111111 |
3 | 101002210200210212 |
4 | 20221003100333 |
5 | 244103312012 |
6 | 22215223035 |
7 | 3410205215 |
oct | 1051032077 |
9 | 332720725 |
10 | 144979007 |
11 | 74922968 |
12 | 40677a7b |
13 | 240616c4 |
14 | 1537ccb5 |
15 | cadbb22 |
hex | 8a4343f |
144979007 has 4 divisors (see below), whose sum is σ = 145016760. Its totient is φ = 144941256.
The previous prime is 144979001. The next prime is 144979019. The reversal of 144979007 is 700979441.
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: 700979441 = 23 ⋅30477367.
It is a cyclic number.
It is not a de Polignac number, because 144979007 - 24 = 144978991 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 (144979001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12368 + ... + 21045.
It is an arithmetic number, because the mean of its divisors is an integer number (36254190).
Almost surely, 2144979007 is an apocalyptic number.
144979007 is a deficient number, since it is larger than the sum of its proper divisors (37753).
144979007 is an equidigital number, since it uses as much as digits as its factorization.
144979007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37752.
The product of its (nonzero) digits is 63504, while the sum is 41.
The square root of 144979007 is about 12040.7228603602. The cubic root of 144979007 is about 525.3334323313. Note that the first 3 decimals are identical.
The spelling of 144979007 in words is "one hundred forty-four million, nine hundred seventy-nine thousand, seven".
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