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2020010000 = 2454202001
BaseRepresentation
bin111100001100110…
…1110100000010000
312012210000010210012
41320121232200100
513114110310000
6532235454052
7101025541661
oct17031564020
95183003705
102020010000
11947274458
124845b7328
132626621b8
141523c7368
15bc516735
hex7866e810

2020010000 has 50 divisors (see below), whose sum is σ = 4890670422. Its totient is φ = 808000000.

The previous prime is 2020009991. The next prime is 2020010009. The reversal of 2020010000 is 100202.

It is an interprime number because it is at equal distance from previous prime (2020009991) and next prime (2020010009).

It can be written as a sum of positive squares in 5 ways, for example, as 210018064 + 1809991936 = 14492^2 + 42544^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (5).

It is not an unprimeable number, because it can be changed into a prime (2020010009) 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 9 ways as a sum of consecutive naturals, for example, 91001 + ... + 111000.

Almost surely, 22020010000 is an apocalyptic number.

2020010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020010000 is an abundant number, since it is smaller than the sum of its proper divisors (2870660422).

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

2020010000 is an equidigital number, since it uses as much as digits as its factorization.

2020010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202029 (or 202008 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 2020010000 is about 44944.5213568907. The cubic root of 2020010000 is about 1264.1089508448.

Adding to 2020010000 its reverse (100202), we get a palindrome (2020110202).

The spelling of 2020010000 in words is "two billion, twenty million, ten thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 202001 404002 808004 1010005 1616008 2020010 3232016 4040020 5050025 8080040 10100050 16160080 20200100 25250125 40400200 50500250 80800400 101000500 126250625 202001000 252501250 404002000 505002500 1010005000 2020010000