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84196189 = 71117131491
BaseRepresentation
bin1010000010010…
…11101101011101
312212102121110101
411001023231131
5133023234224
612204341101
72041440640
oct501135535
9185377411
1084196189
1143587930
1224244791
131459c33c
14b279a57
1575d2044
hex504bb5d

84196189 has 32 divisors (see below), whose sum is σ = 112223232. Its totient is φ = 61152000.

The previous prime is 84196141. The next prime is 84196207. The reversal of 84196189 is 98169148.

It is not a de Polignac number, because 84196189 - 215 = 84163421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84196789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171234 + ... + 171724.

It is an arithmetic number, because the mean of its divisors is an integer number (3506976).

Almost surely, 284196189 is an apocalyptic number.

It is an amenable number.

84196189 is a deficient number, since it is larger than the sum of its proper divisors (28027043).

84196189 is a wasteful number, since it uses less digits than its factorization.

84196189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657.

The product of its digits is 124416, while the sum is 46.

The square root of 84196189 is about 9175.8481351862. The cubic root of 84196189 is about 438.2926066180.

The spelling of 84196189 in words is "eighty-four million, one hundred ninety-six thousand, one hundred eighty-nine".

Divisors: 1 7 11 17 77 119 131 187 491 917 1309 1441 2227 3437 5401 8347 10087 15589 24497 37807 58429 64321 91817 171479 450247 642719 707531 1093457 4952717 7654199 12028027 84196189