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82459020 = 22357196331
BaseRepresentation
bin1001110101000…
…11100110001100
312202011100111210
410322203212030
5132102142040
612103214420
72020614210
oct472434614
9182140453
1082459020
1142600756
1223747410
1314111727
14ad46940
15738c480
hex4ea398c

82459020 has 48 divisors (see below), whose sum is σ = 263870208. Its totient is φ = 18847680.

The previous prime is 82459001. The next prime is 82459037. The reversal of 82459020 is 2095428.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 97746 + ... + 98585.

It is an arithmetic number, because the mean of its divisors is an integer number (5497296).

Almost surely, 282459020 is an apocalyptic number.

It is an amenable number.

82459020 is an abundant number, since it is smaller than the sum of its proper divisors (181411188).

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

82459020 is a wasteful number, since it uses less digits than its factorization.

82459020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196350 (or 196348 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 82459020 is about 9080.6949073295. The cubic root of 82459020 is about 435.2572926280.

The spelling of 82459020 in words is "eighty-two million, four hundred fifty-nine thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 196331 392662 588993 785324 981655 1177986 1374317 1963310 2355972 2748634 2944965 3926620 4122951 5497268 5889930 6871585 8245902 11779860 13743170 16491804 20614755 27486340 41229510 82459020