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2100000433 = 9727778157
BaseRepresentation
bin111110100101011…
…0111011010110001
312102100112002000211
41331022313122301
513300100003213
6544214144121
7103016465146
oct17512673261
95370462024
102100000433
11988439453
124a7352041
132760bb10b
1415cc8a3cd
15c456753d
hex7d2b76b1

2100000433 has 8 divisors (see below), whose sum is σ = 2129336552. Its totient is φ = 2070821376.

The previous prime is 2100000407. The next prime is 2100000449. The reversal of 2100000433 is 3340000012.

It can be written as a sum of positive squares in 4 ways, for example, as 54066609 + 2045933824 = 7353^2 + 45232^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100000433 - 221 = 2097903281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100000493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12210 + ... + 65947.

It is an arithmetic number, because the mean of its divisors is an integer number (266167069).

Almost surely, 22100000433 is an apocalyptic number.

It is an amenable number.

2100000433 is a deficient number, since it is larger than the sum of its proper divisors (29336119).

2100000433 is an equidigital number, since it uses as much as digits as its factorization.

2100000433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78531.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2100000433 is about 45825.7616739755. The cubic root of 2100000433 is about 1280.5792530019.

Adding to 2100000433 its reverse (3340000012), we get a palindrome (5440000445).

The spelling of 2100000433 in words is "two billion, one hundred million, four hundred thirty-three", and thus it is an aban number.

Divisors: 1 97 277 26869 78157 7581229 21649489 2100000433