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84044105 = 516808821
BaseRepresentation
bin1010000001001…
…10100101001001
312212010212211122
411000212211021
5133003402410
612201205025
72040235355
oct500464511
9185125748
1084044105
1143493642
1224190775
1314548052
14b23a465
1575a1e55
hex5026949

84044105 has 4 divisors (see below), whose sum is σ = 100852932. Its totient is φ = 67235280.

The previous prime is 84044099. The next prime is 84044159. The reversal of 84044105 is 50144048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43454464 + 40589641 = 6592^2 + 6371^2 .

It is not a de Polignac number, because 84044105 - 216 = 83978569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8404406 + ... + 8404415.

It is an arithmetic number, because the mean of its divisors is an integer number (25213233).

Almost surely, 284044105 is an apocalyptic number.

It is an amenable number.

84044105 is a deficient number, since it is larger than the sum of its proper divisors (16808827).

84044105 is a wasteful number, since it uses less digits than its factorization.

84044105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16808826.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 84044105 is about 9167.5571991671. The cubic root of 84044105 is about 438.0285508519.

The spelling of 84044105 in words is "eighty-four million, forty-four thousand, one hundred five".

Divisors: 1 5 16808821 84044105