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83021086 = 21071392791
BaseRepresentation
bin1001111001011…
…00110100011110
312210012220112001
410330230310132
5132223133321
612123232514
72025444661
oct474546436
9183186461
1083021086
1142954a75
122397873a
131427a505
14b0516d8
15744dc91
hex4f2cd1e

83021086 has 16 divisors (see below), whose sum is σ = 126645120. Its totient is φ = 40812120.

The previous prime is 83021077. The next prime is 83021111. The reversal of 83021086 is 68012038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28351 + ... + 31141.

It is an arithmetic number, because the mean of its divisors is an integer number (7915320).

Almost surely, 283021086 is an apocalyptic number.

83021086 is a deficient number, since it is larger than the sum of its proper divisors (43624034).

83021086 is a wasteful number, since it uses less digits than its factorization.

83021086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 83021086 is about 9111.5907502477. The cubic root of 83021086 is about 436.2440032235.

The spelling of 83021086 in words is "eighty-three million, twenty-one thousand, eighty-six".

Divisors: 1 2 107 139 214 278 2791 5582 14873 29746 298637 387949 597274 775898 41510543 83021086