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20202004313 = 47429829879
BaseRepresentation
bin10010110100001000…
…100001111101011001
31221010220122011001222
4102310020201331121
5312333203114223
613140343021425
71313424126521
oct226410417531
957126564058
1020202004313
118627560937
123ab973a875
131b9c4b430a
14d9906a681
157d386e0c8
hex4b4221f59

20202004313 has 4 divisors (see below), whose sum is σ = 20631834240. Its totient is φ = 19772174388.

The previous prime is 20202004307. The next prime is 20202004337. The reversal of 20202004313 is 31340020202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20202004313 - 28 = 20202004057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202004291 and 20202004300.

It is not an unprimeable number, because it can be changed into a prime (20202004343) 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, 214914893 + ... + 214914986.

It is an arithmetic number, because the mean of its divisors is an integer number (5157958560).

Almost surely, 220202004313 is an apocalyptic number.

It is an amenable number.

20202004313 is a deficient number, since it is larger than the sum of its proper divisors (429829927).

20202004313 is an equidigital number, since it uses as much as digits as its factorization.

20202004313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429829926.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20202004313 its reverse (31340020202), we get a palindrome (51542024515).

The spelling of 20202004313 in words is "twenty billion, two hundred two million, four thousand, three hundred thirteen".

Divisors: 1 47 429829879 20202004313