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84120485 = 516824097
BaseRepresentation
bin1010000001110…
…01001110100101
312212021202121112
411000321032211
5133013323420
612202554405
72041004141
oct500711645
9185252545
1084120485
1143535a69
1224208a05
1314573a47
14b25a221
1575b98c5
hex50393a5

84120485 has 4 divisors (see below), whose sum is σ = 100944588. Its totient is φ = 67296384.

The previous prime is 84120473. The next prime is 84120493. The reversal of 84120485 is 58402148.

It is a happy number.

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 39150049 + 44970436 = 6257^2 + 6706^2 .

It is a cyclic number.

It is not a de Polignac number, because 84120485 - 28 = 84120229 is a prime.

It is a Duffinian number.

It is a congruent 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, 8412044 + ... + 8412053.

It is an arithmetic number, because the mean of its divisors is an integer number (25236147).

Almost surely, 284120485 is an apocalyptic number.

It is an amenable number.

84120485 is a deficient number, since it is larger than the sum of its proper divisors (16824103).

84120485 is a wasteful number, since it uses less digits than its factorization.

84120485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16824102.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 84120485 is about 9171.7220302406. The cubic root of 84120485 is about 438.1612053694.

The spelling of 84120485 in words is "eighty-four million, one hundred twenty thousand, four hundred eighty-five".

Divisors: 1 5 16824097 84120485