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86684371 = 389222839
BaseRepresentation
bin1010010101010…
…11001011010011
320001010000121021
411022223023103
5134142344441
612333540311
72101543054
oct512531323
9201100537
1086684371
1144a27284
1225044697
1314c60a37
14b72672b
1579243d1
hex52ab2d3

86684371 has 4 divisors (see below), whose sum is σ = 86907600. Its totient is φ = 86461144.

The previous prime is 86684369. The next prime is 86684387. The reversal of 86684371 is 17348668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86684371 - 21 = 86684369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86684471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111031 + ... + 111808.

It is an arithmetic number, because the mean of its divisors is an integer number (21726900).

Almost surely, 286684371 is an apocalyptic number.

86684371 is a deficient number, since it is larger than the sum of its proper divisors (223229).

86684371 is a wasteful number, since it uses less digits than its factorization.

86684371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223228.

The product of its digits is 193536, while the sum is 43.

The square root of 86684371 is about 9310.4441891888. Note that the first 3 decimals coincide. The cubic root of 86684371 is about 442.5682633789.

The spelling of 86684371 in words is "eighty-six million, six hundred eighty-four thousand, three hundred seventy-one".

Divisors: 1 389 222839 86684371