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83028906 = 2324612717
BaseRepresentation
bin1001111001011…
…10101110101010
312210020022020200
410330232232222
5132223411111
612123333030
72025506532
oct474565652
9183208220
1083028906
114295a934
1223981176
1314280c3c
14b0544c2
157451256
hex4f2ebaa

83028906 has 12 divisors (see below), whose sum is σ = 179896002. Its totient is φ = 27676296.

The previous prime is 83028889. The next prime is 83028929. The reversal of 83028906 is 60982038.

It can be written as a sum of positive squares in only one way, i.e., 56927025 + 26101881 = 7545^2 + 5109^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2306341 + ... + 2306376.

Almost surely, 283028906 is an apocalyptic number.

83028906 is an abundant number, since it is smaller than the sum of its proper divisors (96867096).

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

83028906 is a wasteful number, since it uses less digits than its factorization.

83028906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612725 (or 4612722 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 83028906 is about 9112.0198638941. The cubic root of 83028906 is about 436.2576998282.

The spelling of 83028906 in words is "eighty-three million, twenty-eight thousand, nine hundred six".

Divisors: 1 2 3 6 9 18 4612717 9225434 13838151 27676302 41514453 83028906