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82007650 = 25223292459
BaseRepresentation
bin1001110001101…
…01011001100010
312201022102100101
410320311121202
5131443221100
612045413014
72014024234
oct470653142
9181272311
1082007650
114232261a
122356a16a
1313cb414a
14ac6a254
1572ed86a
hex4e35662

82007650 has 48 divisors (see below), whose sum is σ = 164721600. Its totient is φ = 30282560.

The previous prime is 82007633. The next prime is 82007659. The reversal of 82007650 is 5670028.

It is not an unprimeable number, because it can be changed into a prime (82007659) 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 23 ways as a sum of consecutive naturals, for example, 32121 + ... + 34579.

It is an arithmetic number, because the mean of its divisors is an integer number (3431700).

Almost surely, 282007650 is an apocalyptic number.

82007650 is an abundant number, since it is smaller than the sum of its proper divisors (82713950).

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

82007650 is a wasteful number, since it uses less digits than its factorization.

82007650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523 (or 2518 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 82007650 is about 9055.8075288734. The cubic root of 82007650 is about 434.4616584345.

Adding to 82007650 its reverse (5670028), we get a palindrome (87677678).

The spelling of 82007650 in words is "eighty-two million, seven thousand, six hundred fifty".

Divisors: 1 2 5 10 23 25 29 46 50 58 115 145 230 290 575 667 725 1150 1334 1450 2459 3335 4918 6670 12295 16675 24590 33350 56557 61475 71311 113114 122950 142622 282785 356555 565570 713110 1413925 1640153 1782775 2827850 3280306 3565550 8200765 16401530 41003825 82007650