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84208197 = 331788547
BaseRepresentation
bin1010000010011…
…10101001000101
312212110012221010
411001032221011
5133024130242
612204512433
72041520643
oct501165105
9185405833
1084208197
1143595957
122424b719
13145a4948
14b280193
1575d589c
hex504ea45

84208197 has 8 divisors (see below), whose sum is σ = 112633056. Its totient is φ = 55961072.

The previous prime is 84208181. The next prime is 84208211. The reversal of 84208197 is 79180248.

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 84208197 - 24 = 84208181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84208177) 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 7 ways as a sum of consecutive naturals, for example, 43323 + ... + 45224.

It is an arithmetic number, because the mean of its divisors is an integer number (14079132).

Almost surely, 284208197 is an apocalyptic number.

It is an amenable number.

84208197 is a deficient number, since it is larger than the sum of its proper divisors (28424859).

84208197 is a wasteful number, since it uses less digits than its factorization.

84208197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88867.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 84208197 is about 9176.5024382931. The cubic root of 84208197 is about 438.3134419531.

The spelling of 84208197 in words is "eighty-four million, two hundred eight thousand, one hundred ninety-seven".

Divisors: 1 3 317 951 88547 265641 28069399 84208197