Base | Representation |
---|---|
bin | 10001001111111… |
… | …11010111000110 |
3 | 101002021120021111 |
4 | 20213333113012 |
5 | 244020411440 |
6 | 22205235234 |
7 | 3404636266 |
oct | 1047772706 |
9 | 332246244 |
10 | 144700870 |
11 | 747529a6 |
12 | 40562b1a |
13 | 23c94c22 |
14 | 153097a6 |
15 | ca844ea |
hex | 89ff5c6 |
144700870 has 16 divisors (see below), whose sum is σ = 268864128. Its totient is φ = 56013120.
The previous prime is 144700867. The next prime is 144700939. The reversal of 144700870 is 78007441.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233079 + ... + 233698.
It is an arithmetic number, because the mean of its divisors is an integer number (16804008).
Almost surely, 2144700870 is an apocalyptic number.
144700870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
144700870 is a deficient number, since it is larger than the sum of its proper divisors (124163258).
144700870 is a wasteful number, since it uses less digits than its factorization.
144700870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 466815.
The product of its (nonzero) digits is 6272, while the sum is 31.
The square root of 144700870 is about 12029.1674691144. The cubic root of 144700870 is about 524.9972728505.
The spelling of 144700870 in words is "one hundred forty-four million, seven hundred thousand, eight hundred seventy".
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