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84160191 = 3139201823
BaseRepresentation
bin1010000010000…
…10111010111111
312212100210002010
411001002322333
5133021111231
612203502303
72041230663
oct501027277
9185323063
1084160191
1143562885
1224227993
1314588b3b
14b26a8a3
1575c6546
hex5042ebf

84160191 has 8 divisors (see below), whose sum is σ = 113021440. Its totient is φ = 55702872.

The previous prime is 84160189. The next prime is 84160199. The reversal of 84160191 is 19106148.

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

It is not a de Polignac number, because 84160191 - 21 = 84160189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84160199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100495 + ... + 101328.

It is an arithmetic number, because the mean of its divisors is an integer number (14127680).

Almost surely, 284160191 is an apocalyptic number.

84160191 is a deficient number, since it is larger than the sum of its proper divisors (28861249).

84160191 is a wasteful number, since it uses less digits than its factorization.

84160191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201965.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 84160191 is about 9173.8863629326. The cubic root of 84160191 is about 438.2301338523.

The spelling of 84160191 in words is "eighty-four million, one hundred sixty thousand, one hundred ninety-one".

Divisors: 1 3 139 417 201823 605469 28053397 84160191