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84160427 = 1323397709
BaseRepresentation
bin1010000010000…
…10111110101011
312212100210101212
411001002332223
5133021113202
612203503335
72041231451
oct501027653
9185323355
1084160427
1143562a7a
1224227b4b
1314588c90
14b26a9d1
1575c6652
hex5042fab

84160427 has 16 divisors (see below), whose sum is σ = 94946880. Its totient is φ = 74017152.

The previous prime is 84160397. The next prime is 84160429. The reversal of 84160427 is 72406148.

It is a cyclic number.

It is not a de Polignac number, because 84160427 - 28 = 84160171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84160393 and 84160402.

It is not an unprimeable number, because it can be changed into a prime (84160429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118349 + ... + 119057.

It is an arithmetic number, because the mean of its divisors is an integer number (5934180).

Almost surely, 284160427 is an apocalyptic number.

84160427 is a deficient number, since it is larger than the sum of its proper divisors (10786453).

84160427 is a wasteful number, since it uses less digits than its factorization.

84160427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 84160427 is about 9173.8992255202. The cubic root of 84160427 is about 438.2305434767.

The spelling of 84160427 in words is "eighty-four million, one hundred sixty thousand, four hundred twenty-seven".

Divisors: 1 13 23 299 397 709 5161 9131 9217 16307 118703 211991 281473 3659149 6473879 84160427