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84612125 = 531352069
BaseRepresentation
bin1010000101100…
…01010000011101
312220012202000102
411002301100131
5133130042000
612221310445
72045122403
oct502612035
9186182012
1084612125
1143841384
1224405425
13146b6760
14b347473
1576653d5
hex50b141d

84612125 has 16 divisors (see below), whose sum is σ = 113720880. Its totient is φ = 62481600.

The previous prime is 84612119. The next prime is 84612127. The reversal of 84612125 is 52121648.

It can be written as a sum of positive squares in 8 ways, for example, as 25060036 + 59552089 = 5006^2 + 7717^2 .

It is not a de Polignac number, because 84612125 - 26 = 84612061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84612127) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24410 + ... + 27659.

It is an arithmetic number, because the mean of its divisors is an integer number (7107555).

Almost surely, 284612125 is an apocalyptic number.

It is an amenable number.

84612125 is a deficient number, since it is larger than the sum of its proper divisors (29108755).

84612125 is a wasteful number, since it uses less digits than its factorization.

84612125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52097 (or 52087 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 84612125 is about 9198.4849295957. The cubic root of 84612125 is about 439.0131550654.

The spelling of 84612125 in words is "eighty-four million, six hundred twelve thousand, one hundred twenty-five".

Divisors: 1 5 13 25 65 125 325 1625 52069 260345 676897 1301725 3384485 6508625 16922425 84612125