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82330885 = 5713231449
BaseRepresentation
bin1001110100001…
…00010100000101
312201220211202001
410322010110011
5132034042020
612100345301
72016541510
oct472042405
9181824661
1082330885
114252345a
12236a5231
1314098300
14ad11d77
15736450a
hex4e84505

82330885 has 48 divisors (see below), whose sum is σ = 126489600. Its totient is φ = 50319360.

The previous prime is 82330879. The next prime is 82330891. The reversal of 82330885 is 58803328.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82330879) and next prime (82330891).

It is not a de Polignac number, because 82330885 - 29 = 82330373 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 183141 + ... + 183589.

It is an arithmetic number, because the mean of its divisors is an integer number (2635200).

Almost surely, 282330885 is an apocalyptic number.

82330885 is the 5239-th octagonal number.

It is an amenable number.

82330885 is a deficient number, since it is larger than the sum of its proper divisors (44158715).

82330885 is a wasteful number, since it uses less digits than its factorization.

82330885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 82330885 is about 9073.6368122159. The cubic root of 82330885 is about 435.0317235859.

The spelling of 82330885 in words is "eighty-two million, three hundred thirty thousand, eight hundred eighty-five".

Divisors: 1 5 7 13 31 35 65 91 155 169 217 403 449 455 845 1085 1183 2015 2245 2821 3143 5239 5837 5915 13919 14105 15715 26195 29185 36673 40859 69595 75881 97433 180947 183365 204295 379405 487165 531167 904735 1266629 2352311 2655835 6333145 11761555 16466177 82330885