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8043997 = 132326903
BaseRepresentation
bin11110101011110111011101
3120010200021211
4132223313131
54024401442
6444224421
7125241613
oct36536735
916120254
108043997
1145a4635
12283b111
131888480
1410d56b3
15a8d617
hex7abddd

8043997 has 8 divisors (see below), whose sum is σ = 9039744. Its totient is φ = 7102128.

The previous prime is 8043983. The next prime is 8044013. The reversal of 8043997 is 7993408.

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 8043997 - 27 = 8043869 is a prime.

It is a Duffinian number.

8043997 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8043977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13153 + ... + 13750.

It is an arithmetic number, because the mean of its divisors is an integer number (1129968).

Almost surely, 28043997 is an apocalyptic number.

It is an amenable number.

8043997 is a deficient number, since it is larger than the sum of its proper divisors (995747).

8043997 is a wasteful number, since it uses less digits than its factorization.

8043997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26939.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 8043997 is about 2836.1941047820. The cubic root of 8043997 is about 200.3659715822.

The spelling of 8043997 in words is "eight million, forty-three thousand, nine hundred ninety-seven".

Divisors: 1 13 23 299 26903 349739 618769 8043997