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83225385 = 32523191421
BaseRepresentation
bin1001111010111…
…10101100101001
312210121021202200
410331132230221
5132301203020
612131450413
72030255415
oct475365451
9183537680
1083225385
1142a84511
1223a56a09
131431c4b9
14b0a5d45
15748e590
hex4f5eb29

83225385 has 48 divisors (see below), whose sum is σ = 151676928. Its totient is φ = 42134400.

The previous prime is 83225371. The next prime is 83225393. The reversal of 83225385 is 58352238.

It is not a de Polignac number, because 83225385 - 24 = 83225369 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197475 + ... + 197895.

It is an arithmetic number, because the mean of its divisors is an integer number (3159936).

Almost surely, 283225385 is an apocalyptic number.

It is an amenable number.

83225385 is a deficient number, since it is larger than the sum of its proper divisors (68451543).

83225385 is a wasteful number, since it uses less digits than its factorization.

83225385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 643 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 83225385 is about 9122.7948020330. The cubic root of 83225385 is about 436.6015477615.

The spelling of 83225385 in words is "eighty-three million, two hundred twenty-five thousand, three hundred eighty-five".

Divisors: 1 3 5 9 15 23 45 69 115 191 207 345 421 573 955 1035 1263 1719 2105 2865 3789 4393 6315 8595 9683 13179 18945 21965 29049 39537 48415 65895 80411 87147 145245 197685 241233 402055 435735 723699 1206165 1849453 3618495 5548359 9247265 16645077 27741795 83225385