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82352490 = 235111631531
BaseRepresentation
bin1001110100010…
…01100101101010
312201221221101020
410322021211222
5132040234430
612101033310
72016661503
oct472114552
9181857336
1082352490
1142538710
12236b5836
13140a50ac
14ad19baa
15736ab10
hex4e8996a

82352490 has 64 divisors (see below), whose sum is σ = 217078272. Its totient is φ = 19828800.

The previous prime is 82352423. The next prime is 82352497. The reversal of 82352490 is 9425328.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (82352497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53025 + ... + 54555.

It is an arithmetic number, because the mean of its divisors is an integer number (3391848).

Almost surely, 282352490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82352490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108539136).

82352490 is an abundant number, since it is smaller than the sum of its proper divisors (134725782).

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

82352490 is a wasteful number, since it uses less digits than its factorization.

82352490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 82352490 is about 9074.8272710835. The cubic root of 82352490 is about 435.0697734557.

The spelling of 82352490 in words is "eighty-two million, three hundred fifty-two thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 163 165 326 330 489 815 978 1531 1630 1793 2445 3062 3586 4593 4890 5379 7655 8965 9186 10758 15310 16841 17930 22965 26895 33682 45930 50523 53790 84205 101046 168410 249553 252615 499106 505230 748659 1247765 1497318 2495530 2745083 3743295 5490166 7486590 8235249 13725415 16470498 27450830 41176245 82352490