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20200011001 = 156471290983
BaseRepresentation
bin10010110100000000…
…111011010011111001
31221010202212212202121
4102310000323103321
5312332200323001
613140232201241
71313401155232
oct226400732371
957122785677
1020200011001
11862641a275
123ab8b39221
131b9bc66c41
14d98aac089
157d35c86a1
hex4b403b4f9

20200011001 has 4 divisors (see below), whose sum is σ = 20201317632. Its totient is φ = 20198704372.

The previous prime is 20200010989. The next prime is 20200011023. The reversal of 20200011001 is 10011000202.

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 20200011001 - 211 = 20200008953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200014001) 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, 629845 + ... + 661138.

It is an arithmetic number, because the mean of its divisors is an integer number (5050329408).

Almost surely, 220200011001 is an apocalyptic number.

It is an amenable number.

20200011001 is a deficient number, since it is larger than the sum of its proper divisors (1306631).

20200011001 is a wasteful number, since it uses less digits than its factorization.

20200011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306630.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20200011001 its reverse (10011000202), we get a palindrome (30211011203).

The spelling of 20200011001 in words is "twenty billion, two hundred million, eleven thousand, one".

Divisors: 1 15647 1290983 20200011001