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84712205 = 518898969
BaseRepresentation
bin1010000110010…
…01101100001101
312220101211022002
411003021230031
5133141242310
612223402045
72046020234
oct503115415
9186354262
1084712205
11438aa596
1224453325
1314720186
14b371b1b
157684da5
hex50c9b0d

84712205 has 8 divisors (see below), whose sum is σ = 101719800. Its totient is φ = 67726336.

The previous prime is 84712183. The next prime is 84712211. The reversal of 84712205 is 50221748.

It can be written as a sum of positive squares in 4 ways, for example, as 8726116 + 75986089 = 2954^2 + 8717^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84712205 - 210 = 84711181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4961 + ... + 13929.

It is an arithmetic number, because the mean of its divisors is an integer number (12714975).

Almost surely, 284712205 is an apocalyptic number.

It is an amenable number.

84712205 is a deficient number, since it is larger than the sum of its proper divisors (17007595).

84712205 is a wasteful number, since it uses less digits than its factorization.

84712205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10863.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 84712205 is about 9203.9233482249. The cubic root of 84712205 is about 439.1861764660.

The spelling of 84712205 in words is "eighty-four million, seven hundred twelve thousand, two hundred five".

Divisors: 1 5 1889 8969 9445 44845 16942441 84712205