Base | Representation |
---|---|
bin | 10001000011111… |
… | …10110011101100 |
3 | 100222022112121100 |
4 | 20201332303230 |
5 | 243120010430 |
6 | 22111403100 |
7 | 3355356132 |
oct | 1041766354 |
9 | 328275540 |
10 | 143125740 |
11 | 7387753a |
12 | 3bb23490 |
13 | 23862cb4 |
14 | 15019752 |
15 | c872960 |
hex | 887ecec |
143125740 has 72 divisors (see below), whose sum is σ = 441539280. Its totient is φ = 37517184.
The previous prime is 143125739. The next prime is 143125747. The reversal of 143125740 is 47521341.
It is not an unprimeable number, because it can be changed into a prime (143125747) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3882 + ... + 17358.
It is an arithmetic number, because the mean of its divisors is an integer number (6132490).
Almost surely, 2143125740 is an apocalyptic number.
143125740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 143125740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220769640).
143125740 is an abundant number, since it is smaller than the sum of its proper divisors (298413540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143125740 is a wasteful number, since it uses less digits than its factorization.
143125740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13551 (or 13546 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 27.
The square root of 143125740 is about 11963.5170414055. The cubic root of 143125740 is about 523.0853798096.
The spelling of 143125740 in words is "one hundred forty-three million, one hundred twenty-five thousand, seven hundred forty".
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