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83893285 = 5731167463
BaseRepresentation
bin1010000000000…
…01110000100101
312211212012221201
411000001300211
5132434041120
612154042501
72036036560
oct500016045
9184765851
1083893285
11433a02a3
1224119431
13144c44c8
14b1db4d7
15757240a
hex5001c25

83893285 has 32 divisors (see below), whose sum is σ = 119734272. Its totient is φ = 55218240.

The previous prime is 83893273. The next prime is 83893289. The reversal of 83893285 is 58239838.

It is a happy number.

It is not a de Polignac number, because 83893285 - 25 = 83893253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83893289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180964 + ... + 181426.

It is an arithmetic number, because the mean of its divisors is an integer number (3741696).

Almost surely, 283893285 is an apocalyptic number.

It is an amenable number.

83893285 is a deficient number, since it is larger than the sum of its proper divisors (35840987).

83893285 is a wasteful number, since it uses less digits than its factorization.

83893285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673.

The product of its digits is 414720, while the sum is 46.

The square root of 83893285 is about 9159.3277591753. The cubic root of 83893285 is about 437.7663749257.

The spelling of 83893285 in words is "eighty-three million, eight hundred ninety-three thousand, two hundred eighty-five".

Divisors: 1 5 7 31 35 155 167 217 463 835 1085 1169 2315 3241 5177 5845 14353 16205 25885 36239 71765 77321 100471 181195 386605 502355 541247 2396951 2706235 11984755 16778657 83893285