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8200068140 = 22511131284527
BaseRepresentation
bin1111010001100001…
…10001110000101100
3210011110212121210102
413220300301300230
5113243204140030
63433403530232
7410130300125
oct75060616054
923143777712
108200068140
1135287a7620
12170a229978
13a08b22434
1457b0a704c
1532ed69c45
hex1e8c31c2c

8200068140 has 48 divisors (see below), whose sum is σ = 18929078784. Its totient is φ = 2959070400.

The previous prime is 8200068119. The next prime is 8200068143. The reversal of 8200068140 is 418600028.

It is a super-2 number, since 2×82000681402 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8200068143) 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, 113444 + ... + 171083.

It is an arithmetic number, because the mean of its divisors is an integer number (394355808).

Almost surely, 28200068140 is an apocalyptic number.

It is an amenable number.

8200068140 is an abundant number, since it is smaller than the sum of its proper divisors (10729010644).

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

8200068140 is a wasteful number, since it uses less digits than its factorization.

8200068140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284678 (or 284676 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 8200068140 is about 90554.2276208019. The cubic root of 8200068140 is about 2016.5352608259.

Adding to 8200068140 its reverse (418600028), we get a palindrome (8618668168).

The spelling of 8200068140 in words is "eight billion, two hundred million, sixty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 131 220 262 524 655 1310 1441 2620 2882 5764 7205 14410 28820 284527 569054 1138108 1422635 2845270 3129797 5690540 6259594 12519188 15648985 31297970 37273037 62595940 74546074 149092148 186365185 372730370 410003407 745460740 820006814 1640013628 2050017035 4100034070 8200068140