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20011030003 = 71647435619
BaseRepresentation
bin10010101000110000…
…000001010111110011
31220122121021122120101
4102220300001113303
5311440310430003
613105401453231
71305614643226
oct225060012763
956577248511
1020011030003
118539783028
123a657a1217
131b6ba6a273
14d7b9575bd
157c1be911d
hex4a8c015f3

20011030003 has 8 divisors (see below), whose sum is σ = 20324286720. Its totient is φ = 19698645960.

The previous prime is 20011029977. The next prime is 20011030049. The reversal of 20011030003 is 30003011002.

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 20011030003 - 225 = 19977475571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011030703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171873 + ... + 263746.

It is an arithmetic number, because the mean of its divisors is an integer number (2540535840).

Almost surely, 220011030003 is an apocalyptic number.

20011030003 is a deficient number, since it is larger than the sum of its proper divisors (313256717).

20011030003 is an equidigital number, since it uses as much as digits as its factorization.

20011030003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436337.

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 20011030003 its reverse (30003011002), we get a palindrome (50014041005).

The spelling of 20011030003 in words is "twenty billion, eleven million, thirty thousand, three".

Divisors: 1 71 647 45937 435619 30928949 281845493 20011030003