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83892090 = 2352796403
BaseRepresentation
bin1010000000000…
…01011101111010
312211212011022110
411000001131322
5132434021330
612154033150
72036033232
oct500013572
9184764273
1083892090
114339a407
12241187b6
13144c3ab9
14b1dacc2
157571db0
hex500177a

83892090 has 16 divisors (see below), whose sum is σ = 201341088. Its totient is φ = 22371216.

The previous prime is 83892077. The next prime is 83892091. The reversal of 83892090 is 9029838.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83892091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398172 + ... + 1398231.

It is an arithmetic number, because the mean of its divisors is an integer number (12583818).

Almost surely, 283892090 is an apocalyptic number.

83892090 is an abundant number, since it is smaller than the sum of its proper divisors (117448998).

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

83892090 is a wasteful number, since it uses less digits than its factorization.

83892090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796413.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 83892090 is about 9159.2625248980. The cubic root of 83892090 is about 437.7642963593.

The spelling of 83892090 in words is "eighty-three million, eight hundred ninety-two thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 2796403 5592806 8389209 13982015 16778418 27964030 41946045 83892090