Base | Representation |
---|---|
bin | 10001001010011… |
… | …00100110101000 |
3 | 101000220100220100 |
4 | 20211030212220 |
5 | 243323444210 |
6 | 22141425400 |
7 | 3365466522 |
oct | 1045144650 |
9 | 330810810 |
10 | 143968680 |
11 | 742a2889 |
12 | 4026b260 |
13 | 23a9988b |
14 | 15198a12 |
15 | c98c5c0 |
hex | 894c9a8 |
143968680 has 48 divisors (see below), whose sum is σ = 467899380. Its totient is φ = 38391552.
The previous prime is 143968679. The next prime is 143968691. The reversal of 143968680 is 86869341.
It can be written as a sum of positive squares in 2 ways, for example, as 140707044 + 3261636 = 11862^2 + 1806^2 .
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199597 + ... + 200316.
Almost surely, 2143968680 is an apocalyptic number.
143968680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
143968680 is an abundant number, since it is smaller than the sum of its proper divisors (323930700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143968680 is a wasteful number, since it uses less digits than its factorization.
143968680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 399930 (or 399923 counting only the distinct ones).
The product of its (nonzero) digits is 248832, while the sum is 45.
The square root of 143968680 is about 11998.6949290329. The cubic root of 143968680 is about 524.1102753362.
The spelling of 143968680 in words is "one hundred forty-three million, nine hundred sixty-eight thousand, six hundred eighty".
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