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43128041 = 1138910079
BaseRepresentation
bin1010010010000…
…1010011101001
310000011010112212
42210201103221
542020044131
64140214505
71032403505
oct244412351
9100133485
1043128041
1122387810
121253a435
138c20568
145a29305
153bbda2b
hex29214e9

43128041 has 8 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 39102640.

The previous prime is 43127993. The next prime is 43128047. The reversal of 43128041 is 14082134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43128041 - 214 = 43111657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43127998 and 43128016.

It is not an unprimeable number, because it can be changed into a prime (43128047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 761 + ... + 9318.

It is an arithmetic number, because the mean of its divisors is an integer number (5896800).

Almost surely, 243128041 is an apocalyptic number.

It is an amenable number.

43128041 is a deficient number, since it is larger than the sum of its proper divisors (4046359).

43128041 is a wasteful number, since it uses less digits than its factorization.

43128041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 43128041 is about 6567.1943019832. The cubic root of 43128041 is about 350.6871968002.

The spelling of 43128041 in words is "forty-three million, one hundred twenty-eight thousand, forty-one".

Divisors: 1 11 389 4279 10079 110869 3920731 43128041