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20103133201 = 61681325921
BaseRepresentation
bin10010101110001111…
…010111100000010001
31220220000120222101221
4102232033113200101
5312132400230301
613122451525041
71311113545534
oct225617274021
956800528357
1020103133201
118586770578
123a905b9781
131b84b775b8
14d89c90a1b
157c9d3dda1
hex4ae3d7811

20103133201 has 4 divisors (see below), whose sum is σ = 20103520804. Its totient is φ = 20102745600.

The previous prime is 20103133159. The next prime is 20103133207. The reversal of 20103133201 is 10233130102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16460890000 + 3642243201 = 128300^2 + 60351^2 .

It is a cyclic number.

It is not a de Polignac number, because 20103133201 - 27 = 20103133073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103133207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101280 + ... + 224641.

It is an arithmetic number, because the mean of its divisors is an integer number (5025880201).

Almost surely, 220103133201 is an apocalyptic number.

It is an amenable number.

20103133201 is a deficient number, since it is larger than the sum of its proper divisors (387603).

20103133201 is an equidigital number, since it uses as much as digits as its factorization.

20103133201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387602.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20103133201 its reverse (10233130102), we get a palindrome (30336263303).

The spelling of 20103133201 in words is "twenty billion, one hundred three million, one hundred thirty-three thousand, two hundred one".

Divisors: 1 61681 325921 20103133201