Base | Representation |
---|---|
bin | 10001010000010… |
… | …01100001011000 |
3 | 101002100200100220 |
4 | 20220021201120 |
5 | 244023224423 |
6 | 22210200040 |
7 | 3405201522 |
oct | 1050114130 |
9 | 332320326 |
10 | 144742488 |
11 | 747811a0 |
12 | 40583020 |
13 | 23caab57 |
14 | 1531aa12 |
15 | ca919e3 |
hex | 8a09858 |
144742488 has 64 divisors (see below), whose sum is σ = 417985920. Its totient is φ = 41280000.
The previous prime is 144742459. The next prime is 144742489. The reversal of 144742488 is 884247441.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144742489) 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, 11638 + ... + 20613.
It is an arithmetic number, because the mean of its divisors is an integer number (6531030).
Almost surely, 2144742488 is an apocalyptic number.
It is an amenable number.
144742488 is an abundant number, since it is smaller than the sum of its proper divisors (273243432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144742488 is a wasteful number, since it uses less digits than its factorization.
144742488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32288 (or 32284 counting only the distinct ones).
The product of its digits is 229376, while the sum is 42.
The square root of 144742488 is about 12030.8972233994. The cubic root of 144742488 is about 525.0476002192.
The spelling of 144742488 in words is "one hundred forty-four million, seven hundred forty-two thousand, four hundred eighty-eight".
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