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8287663490 = 2567109283401
BaseRepresentation
bin1111011011111101…
…11011010110000010
3210101120200221000122
413231332323112002
5113433120212430
63450213220242
7412242656141
oct75576732602
923346627018
108287663490
113573196277
121733631682
13a210119c2
14588989758
153378bdee5
hex1edfbb582

8287663490 has 64 divisors (see below), whose sum is σ = 15371579520. Its totient is φ = 3216153600.

The previous prime is 8287663487. The next prime is 8287663499. The reversal of 8287663490 is 943667828.

It is a super-2 number, since 2×82876634902 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8287663499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20667290 + ... + 20667690.

It is an arithmetic number, because the mean of its divisors is an integer number (240180930).

Almost surely, 28287663490 is an apocalyptic number.

8287663490 is a deficient number, since it is larger than the sum of its proper divisors (7083916030).

8287663490 is a wasteful number, since it uses less digits than its factorization.

8287663490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The square root of 8287663490 is about 91036.6052200981. The cubic root of 8287663490 is about 2023.6902358944.

The spelling of 8287663490 in words is "eight billion, two hundred eighty-seven million, six hundred sixty-three thousand, four hundred ninety".

Divisors: 1 2 5 10 67 109 134 218 283 335 401 545 566 670 802 1090 1415 2005 2830 4010 7303 14606 18961 26867 30847 36515 37922 43709 53734 61694 73030 87418 94805 113483 134335 154235 189610 218545 226966 268670 308470 437090 567415 1134830 2066749 2928503 4133498 5857006 7603361 10333745 12369647 14642515 15206722 20667490 24739294 29285030 38016805 61848235 76033610 123696470 828766349 1657532698 4143831745 8287663490