Base | Representation |
---|---|
bin | 1010010000111… |
… | …0000001010000 |
3 | 10000000010011220 |
4 | 2210032001100 |
5 | 42010032130 |
6 | 4134405040 |
7 | 1031624256 |
oct | 244160120 |
9 | 100003156 |
10 | 43049040 |
11 | 22333421 |
12 | 12500780 |
13 | 8bc3608 |
14 | 5a085d6 |
15 | 3ba5410 |
hex | 290e050 |
43049040 has 80 divisors (see below), whose sum is σ = 134324736. Its totient is φ = 11404800.
The previous prime is 43049011. The next prime is 43049101. The reversal of 43049040 is 4094034.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-4 number, since 4×430490404 (a number of 32 digits) contains 4444 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 43049040.
It is a congruent number.
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, 42945 + ... + 43935.
Almost surely, 243049040 is an apocalyptic number.
43049040 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 43049040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67162368).
43049040 is an abundant number, since it is smaller than the sum of its proper divisors (91275696).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
43049040 is a wasteful number, since it uses less digits than its factorization.
43049040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1188 (or 1182 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 24.
The square root of 43049040 is about 6561.1767237288. The cubic root of 43049040 is about 350.4729388829.
The spelling of 43049040 in words is "forty-three million, forty-nine thousand, forty".
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