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84954005 = 516990801
BaseRepresentation
bin1010001000001…
…00101110010101
312220212002222122
411010010232111
5133222012010
612232505325
72051045213
oct504045625
9186762878
1084954005
1143a55224
122454b245
13147a6256
14b3d5cb3
1576d1855
hex5104b95

84954005 has 4 divisors (see below), whose sum is σ = 101944812. Its totient is φ = 67963200.

The previous prime is 84953977. The next prime is 84954013. The reversal of 84954005 is 50045948.

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 20729809 + 64224196 = 4553^2 + 8014^2 .

It is not a de Polignac number, because 84954005 - 28 = 84953749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8495396 + ... + 8495405.

It is an arithmetic number, because the mean of its divisors is an integer number (25486203).

Almost surely, 284954005 is an apocalyptic number.

It is an amenable number.

84954005 is a deficient number, since it is larger than the sum of its proper divisors (16990807).

84954005 is a wasteful number, since it uses less digits than its factorization.

84954005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16990806.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 84954005 is about 9217.0496906548. The cubic root of 84954005 is about 439.6036461692.

The spelling of 84954005 in words is "eighty-four million, nine hundred fifty-four thousand, five".

Divisors: 1 5 16990801 84954005