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20112000201 = 323760396397
BaseRepresentation
bin10010101110110001…
…001100010011001001
31220220122021110122100
4102232301030103021
5312142133001301
613123405544013
71311252116046
oct225661142311
956818243570
1020112000201
118590777477
123a93575009
131b86960547
14d8b11c1cd
157ca9e1286
hex4aec4c4c9

20112000201 has 12 divisors (see below), whose sum is σ = 29835820612. Its totient is φ = 13045621536.

The previous prime is 20112000191. The next prime is 20112000247. The reversal of 20112000201 is 10200021102.

It can be written as a sum of positive squares in 2 ways, for example, as 10833687225 + 9278312976 = 104085^2 + 96324^2 .

It is not a de Polignac number, because 20112000201 - 219 = 20111475913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112000001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30197866 + ... + 30198531.

Almost surely, 220112000201 is an apocalyptic number.

It is an amenable number.

20112000201 is a deficient number, since it is larger than the sum of its proper divisors (9723820411).

20112000201 is a wasteful number, since it uses less digits than its factorization.

20112000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60396440 (or 60396437 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20112000201 its reverse (10200021102), we get a palindrome (30312021303).

The spelling of 20112000201 in words is "twenty billion, one hundred twelve million, two hundred one", and thus it is an aban number.

Divisors: 1 3 9 37 111 333 60396397 181189191 543567573 2234666689 6704000067 20112000201