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8530000000 = 2757853
BaseRepresentation
bin1111111000110110…
…10111100010000000
3211000110200220012221
413330123113202000
5114432140000000
63530231300424
7421244542444
oct77433274200
924013626187
108530000000
113687a65285
1217a081a714
13a5c2a01a2
145acc2c824
1534dcdc61a
hex1fc6d7880

8530000000 has 128 divisors (see below), whose sum is σ = 21266547120. Its totient is φ = 3408000000.

The previous prime is 8529999971. The next prime is 8530000001. The reversal of 8530000000 is 358.

It can be written as a sum of positive squares in 8 ways, for example, as 8527414336 + 2585664 = 92344^2 + 1608^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8530000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9999574 + ... + 10000426.

Almost surely, 28530000000 is an apocalyptic number.

8530000000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8530000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10633273560).

8530000000 is an abundant number, since it is smaller than the sum of its proper divisors (12736547120).

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

8530000000 is an frugal number, since it uses more digits than its factorization.

8530000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 8530000000 is about 92357.9991121505. Note that the first 3 decimals coincide. The cubic root of 8530000000 is about 2043.2257053988.

Adding to 8530000000 its reverse (358), we get a palindrome (8530000358).

The spelling of 8530000000 in words is "eight billion, five hundred thirty million", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 853 1000 1250 1600 1706 2000 2500 3125 3200 3412 4000 4265 5000 6250 6824 8000 8530 10000 12500 13648 15625 16000 17060 20000 21325 25000 27296 31250 34120 40000 42650 50000 54592 62500 68240 78125 80000 85300 100000 106625 109184 125000 136480 156250 170600 200000 213250 250000 272960 312500 341200 400000 426500 500000 533125 545920 625000 682400 853000 1000000 1066250 1250000 1364800 1706000 2000000 2132500 2500000 2665625 2729600 3412000 4265000 5000000 5331250 6824000 8530000 10000000 10662500 13328125 13648000 17060000 21325000 26656250 34120000 42650000 53312500 66640625 68240000 85300000 106625000 133281250 170600000 213250000 266562500 341200000 426500000 533125000 853000000 1066250000 1706000000 2132500000 4265000000 8530000000