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20001130201 = 131538548477
BaseRepresentation
bin10010101000001010…
…010000011011011001
31220121220122200121001
4102220022100123121
5311430242131301
613104405345001
71305434541643
oct225012203331
956556580531
1020001130201
118534131178
123a62408161
131b699b21b0
14d7a4db893
157c0de0c01
hex4a82906d9

20001130201 has 4 divisors (see below), whose sum is σ = 21539678692. Its totient is φ = 18462581712.

The previous prime is 20001130183. The next prime is 20001130223. The reversal of 20001130201 is 10203110002.

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 11374435801 + 8626694400 = 106651^2 + 92880^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001130201 - 29 = 20001129689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001130291) 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, 769274226 + ... + 769274251.

It is an arithmetic number, because the mean of its divisors is an integer number (5384919673).

Almost surely, 220001130201 is an apocalyptic number.

It is an amenable number.

20001130201 is a deficient number, since it is larger than the sum of its proper divisors (1538548491).

20001130201 is a wasteful number, since it uses less digits than its factorization.

20001130201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538548490.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20001130201 its reverse (10203110002), we get a palindrome (30204240203).

The spelling of 20001130201 in words is "twenty billion, one million, one hundred thirty thousand, two hundred one".

Divisors: 1 13 1538548477 20001130201