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2020475500 = 225317467509
BaseRepresentation
bin111100001101110…
…0000001001101100
312012210212210022221
41320123200021230
513114220204000
6532253445124
7101032521061
oct17033401154
95183783287
102020475500
1194756216a
124847a07a4
13262796044
141524a8c68
15bc5a961a
hex786e026c

2020475500 has 96 divisors (see below), whose sum is σ = 4691494080. Its totient is φ = 757529600.

The previous prime is 2020475491. The next prime is 2020475507. The reversal of 2020475500 is 55740202.

It is a super-2 number, since 2×20204755002 = 8164642492200500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2020475507) 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, 3969246 + ... + 3969754.

It is an arithmetic number, because the mean of its divisors is an integer number (48869730).

Almost surely, 22020475500 is an apocalyptic number.

2020475500 is a gapful number since it is divisible by the number (20) 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 2020475500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345747040).

2020475500 is an abundant number, since it is smaller than the sum of its proper divisors (2671018580).

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

2020475500 is a wasteful number, since it uses less digits than its factorization.

2020475500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 2020475500 is about 44949.6996652925. The cubic root of 2020475500 is about 1264.2060456646.

The spelling of 2020475500 in words is "two billion, twenty million, four hundred seventy-five thousand, five hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 125 170 250 340 425 467 500 509 850 934 1018 1700 1868 2036 2125 2335 2545 4250 4670 5090 7939 8500 8653 9340 10180 11675 12725 15878 17306 23350 25450 31756 34612 39695 43265 46700 50900 58375 63625 79390 86530 116750 127250 158780 173060 198475 216325 233500 237703 254500 396950 432650 475406 793900 865300 950812 992375 1081625 1188515 1984750 2163250 2377030 3969500 4040951 4326500 4754060 5942575 8081902 11885150 16163804 20204755 23770300 29712875 40409510 59425750 80819020 101023775 118851500 202047550 404095100 505118875 1010237750 2020475500