Base | Representation |
---|---|
bin | 10001001101010… |
… | …11011010100111 |
3 | 101001122002121201 |
4 | 20212223122213 |
5 | 243423411111 |
6 | 22154023331 |
7 | 3402004660 |
oct | 1046533247 |
9 | 331562551 |
10 | 144357031 |
11 | 74538635 |
12 | 40417b47 |
13 | 23ba4580 |
14 | 1525a367 |
15 | ca176c1 |
hex | 89ab6a7 |
144357031 has 16 divisors (see below), whose sum is σ = 177964864. Its totient is φ = 114027264.
The previous prime is 144356969. The next prime is 144357053. The reversal of 144357031 is 130753441.
It is not a de Polignac number, because 144357031 - 27 = 144356903 is a prime.
It is a super-2 number, since 2×1443570312 = 41677904798269922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144357431) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84421 + ... + 86113.
It is an arithmetic number, because the mean of its divisors is an integer number (11122804).
Almost surely, 2144357031 is an apocalyptic number.
144357031 is a deficient number, since it is larger than the sum of its proper divisors (33607833).
144357031 is a wasteful number, since it uses less digits than its factorization.
144357031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2650.
The product of its (nonzero) digits is 5040, while the sum is 28.
The square root of 144357031 is about 12014.8670820779. The cubic root of 144357031 is about 524.5811092476.
The spelling of 144357031 in words is "one hundred forty-four million, three hundred fifty-seven thousand, thirty-one".
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