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2000009000001 = 31960757805399
BaseRepresentation
bin11101000110101001110…
…100110111010001000001
321002012101001210002122110
4131012221310313101001
5230232004301000001
64130442541525533
7264332042001105
oct35065164672101
97065331702573
102000009000001
11701220a38701
12283746b738a9
131167a5395a0c
146cb2db53905
1537058ba93d6
hex1d1a9d37441

2000009000001 has 16 divisors (see below), whose sum is σ = 2811654656000. Its totient is φ = 1261082562768.

The previous prime is 2000008999969. The next prime is 2000009000047. The reversal of 2000009000001 is 1000009000002.

It is a happy number.

It is not a de Polignac number, because 2000009000001 - 25 = 2000008999969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2000009008001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28868101 + ... + 28937298.

It is an arithmetic number, because the mean of its divisors is an integer number (175728416000).

Almost surely, 22000009000001 is an apocalyptic number.

It is an amenable number.

2000009000001 is a deficient number, since it is larger than the sum of its proper divisors (811645655999).

2000009000001 is a wasteful number, since it uses less digits than its factorization.

2000009000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57806028.

The product of its (nonzero) digits is 18, while the sum is 12.

Subtracting from 2000009000001 its reverse (1000009000002), we obtain a palindrome (999999999999).

The spelling of 2000009000001 in words is "two trillion, nine million, one", and thus it is an aban number and an uban number.

Divisors: 1 3 19 57 607 1821 11533 34599 57805399 173416197 1098302581 3294907743 35087877193 105263631579 666669666667 2000009000001