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84041479 = 439720149
BaseRepresentation
bin1010000001001…
…01111100000111
312212010202020101
411000211330013
5133003311404
612201144531
72040224614
oct500457407
9185122211
1084041479
1143491675
122418b147
1314546ab2
14b23950b
1575a12a4
hex5025f07

84041479 has 8 divisors (see below), whose sum is σ = 86886800. Its totient is φ = 81236736.

The previous prime is 84041453. The next prime is 84041509. The reversal of 84041479 is 97414048.

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 84041479 - 219 = 83517191 is a prime.

It is a super-3 number, since 3×840414793 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84042479) 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, 5904 + ... + 14245.

It is an arithmetic number, because the mean of its divisors is an integer number (10860850).

Almost surely, 284041479 is an apocalyptic number.

84041479 is a deficient number, since it is larger than the sum of its proper divisors (2845321).

84041479 is a wasteful number, since it uses less digits than its factorization.

84041479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20289.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 84041479 is about 9167.4139755986. The cubic root of 84041479 is about 438.0239886641.

The spelling of 84041479 in words is "eighty-four million, forty-one thousand, four hundred seventy-nine".

Divisors: 1 43 97 4171 20149 866407 1954453 84041479