Base | Representation |
---|---|
bin | 1010010010000… |
… | …1110100001000 |
3 | 10000011020101212 |
4 | 2210201310020 |
5 | 42020130440 |
6 | 4140232252 |
7 | 1032412535 |
oct | 244416410 |
9 | 100136355 |
10 | 43130120 |
11 | 22389330 |
12 | 1253b688 |
13 | 8c214a7 |
14 | 5a29d8c |
15 | 3bbe465 |
hex | 2921d08 |
43130120 has 64 divisors (see below), whose sum is σ = 107231040. Its totient is φ = 15481600.
The previous prime is 43130107. The next prime is 43130137. The reversal of 43130120 is 2103134.
It is a junction number, because it is equal to n+sod(n) for n = 43130095 and 43130104.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35930 + ... + 37110.
It is an arithmetic number, because the mean of its divisors is an integer number (1675485).
Almost surely, 243130120 is an apocalyptic number.
43130120 is a gapful number since it is divisible by the number (40) 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 43130120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53615520).
43130120 is an abundant number, since it is smaller than the sum of its proper divisors (64100920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
43130120 is a wasteful number, since it uses less digits than its factorization.
43130120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1286 (or 1282 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 43130120 is about 6567.3525868496. The cubic root of 43130120 is about 350.6928317031.
Adding to 43130120 its reverse (2103134), we get a palindrome (45233254).
The spelling of 43130120 in words is "forty-three million, one hundred thirty thousand, one hundred twenty".
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