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83085906 = 2313847651
BaseRepresentation
bin1001111001111…
…00101001010010
312210100012102210
410330330221102
5132232222111
612124452550
72026134651
oct474745122
9183305383
1083085906
1142999742
12239aa156
13142a0b77
14b06b198
1574630a6
hex4f3ca52

83085906 has 8 divisors (see below), whose sum is σ = 166171824. Its totient is φ = 27695300.

The previous prime is 83085889. The next prime is 83085907. The reversal of 83085906 is 60958038.

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

83085906 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (83085907) 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, 6923820 + ... + 6923831.

It is an arithmetic number, because the mean of its divisors is an integer number (20771478).

Almost surely, 283085906 is an apocalyptic number.

83085906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83085906 is a wasteful number, since it uses less digits than its factorization.

83085906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13847656.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 83085906 is about 9115.1470640906. The cubic root of 83085906 is about 436.3575084446.

It can be divided in two parts, 830 and 85906, that added together give a triangular number (86736 = T416).

The spelling of 83085906 in words is "eighty-three million, eighty-five thousand, nine hundred six".

Divisors: 1 2 3 6 13847651 27695302 41542953 83085906