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2005942052672 = 2697323122109
BaseRepresentation
bin11101001100001011011…
…101101010011101000000
321002202200112212101211222
4131030023131222131000
5230331132131141142
64133303403454212
7264632054055545
oct35141335523500
97082615771758
102005942052672
11703795aa2a18
12284921b27368
1311720c62157c
146d133ad6bcc
15372a49babd2
hex1d30b76a740

2005942052672 has 28 divisors (see below), whose sum is σ = 4021577781060. Its totient is φ = 992631115776.

The previous prime is 2005942052659. The next prime is 2005942052677. The reversal of 2005942052672 is 2762502495002.

It can be written as a sum of positive squares in 2 ways, for example, as 1307674583296 + 698267469376 = 1143536^2 + 835624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005942052677) 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, 161554847 + ... + 161567262.

It is an arithmetic number, because the mean of its divisors is an integer number (143627777895).

Almost surely, 22005942052672 is an apocalyptic number.

It is an amenable number.

2005942052672 is an abundant number, since it is smaller than the sum of its proper divisors (2015635728388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2005942052672 is an equidigital number, since it uses as much as digits as its factorization.

2005942052672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323122218 (or 323122208 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 2005942052672 in words is "two trillion, five billion, nine hundred forty-two million, fifty-two thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 97 194 388 776 1552 3104 6208 323122109 646244218 1292488436 2584976872 5169953744 10339907488 20679814976 31342844573 62685689146 125371378292 250742756584 501485513168 1002971026336 2005942052672