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4105200020 = 225205260001
BaseRepresentation
bin1111010010110000…
…0110000110010100
3101121002122202202012
43310230012012110
531401412400040
61515204403352
7203505424115
oct36454060624
911532582665
104105200020
111817307599
129669a6558
1350566604c
142ad2da20c
15190605865
hexf4b06194

4105200020 has 12 divisors (see below), whose sum is σ = 8620920084. Its totient is φ = 1642080000.

The previous prime is 4105199971. The next prime is 4105200023. The reversal of 4105200020 is 200025014.

It can be written as a sum of positive squares in 2 ways, for example, as 423865744 + 3681334276 = 20588^2 + 60674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4105199968 and 4105200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4105200023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102629981 + ... + 102630020.

It is an arithmetic number, because the mean of its divisors is an integer number (718410007).

Almost surely, 24105200020 is an apocalyptic number.

It is an amenable number.

4105200020 is an abundant number, since it is smaller than the sum of its proper divisors (4515720064).

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

4105200020 is a wasteful number, since it uses less digits than its factorization.

4105200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205260010 (or 205260008 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4105200020 is about 64071.8348418398. The cubic root of 4105200020 is about 1601.1970235067.

Adding to 4105200020 its reverse (200025014), we get a palindrome (4305225034).

The spelling of 4105200020 in words is "four billion, one hundred five million, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 205260001 410520002 821040004 1026300005 2052600010 4105200020