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8045538 = 2323173337
BaseRepresentation
bin11110101100001111100010
3120010202101220
4132230033202
54024424123
6444235510
7125246244
oct36541742
916122356
108045538
1145a5806
12283bb96
131889097
1410d6094
15a8dce3
hex7ac3e2

8045538 has 32 divisors (see below), whose sum is σ = 16937856. Its totient is φ = 2542848.

The previous prime is 8045537. The next prime is 8045567. The reversal of 8045538 is 8355408.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8045499 and 8045508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8045533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23706 + ... + 24042.

It is an arithmetic number, because the mean of its divisors is an integer number (529308).

Almost surely, 28045538 is an apocalyptic number.

8045538 is an abundant number, since it is smaller than the sum of its proper divisors (8892318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8045538 is a wasteful number, since it uses less digits than its factorization.

8045538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 8045538 is about 2836.4657586511. The cubic root of 8045538 is about 200.3787655637.

The spelling of 8045538 in words is "eight million, forty-five thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 23 46 69 138 173 337 346 519 674 1011 1038 2022 3979 7751 7958 11937 15502 23253 23874 46506 58301 116602 174903 349806 1340923 2681846 4022769 8045538