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82422490 = 2531475657
BaseRepresentation
bin1001110100110…
…10101011011010
312202002111101211
410322122223122
5132100004430
612102333334
72020402543
oct472325332
9182074354
1082422490
1142586267
122372a24a
13140cac07
14ad374ca
15738172a
hex4e9aada

82422490 has 32 divisors (see below), whose sum is σ = 156432384. Its totient is φ = 31221120.

The previous prime is 82422467. The next prime is 82422491. The reversal of 82422490 is 9422428.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (82422491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11742 + ... + 17398.

It is an arithmetic number, because the mean of its divisors is an integer number (4888512).

Almost surely, 282422490 is an apocalyptic number.

82422490 is a deficient number, since it is larger than the sum of its proper divisors (74009894).

82422490 is a wasteful number, since it uses less digits than its factorization.

82422490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 82422490 is about 9078.6832745724. The cubic root of 82422490 is about 435.1930089899.

The spelling of 82422490 in words is "eighty-two million, four hundred twenty-two thousand, four hundred ninety".

Divisors: 1 2 5 10 31 47 62 94 155 235 310 470 1457 2914 5657 7285 11314 14570 28285 56570 175367 265879 350734 531758 876835 1329395 1753670 2658790 8242249 16484498 41211245 82422490