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84068123 = 531586191
BaseRepresentation
bin1010000001011…
…00011100011011
312212012002210012
411000230130123
5133010134443
612201512135
72040365366
oct500543433
9185162705
1084068123
11434aa697
12241a264b
1314555c69
14b2450dd
1575a9118
hex502c71b

84068123 has 4 divisors (see below), whose sum is σ = 85654368. Its totient is φ = 82481880.

The previous prime is 84068113. The next prime is 84068143. The reversal of 84068123 is 32186048.

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 84068123 - 212 = 84064027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84068123.

It is not an unprimeable number, because it can be changed into a prime (84068113) 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, 793043 + ... + 793148.

It is an arithmetic number, because the mean of its divisors is an integer number (21413592).

Almost surely, 284068123 is an apocalyptic number.

84068123 is a deficient number, since it is larger than the sum of its proper divisors (1586245).

84068123 is a wasteful number, since it uses less digits than its factorization.

84068123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586244.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 84068123 is about 9168.8670510593. The cubic root of 84068123 is about 438.0702732614.

The spelling of 84068123 in words is "eighty-four million, sixty-eight thousand, one hundred twenty-three".

Divisors: 1 53 1586191 84068123