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2005652361 = 3668550787
BaseRepresentation
bin111011110001011…
…1101001110001001
312011202222200210210
41313202331032021
513101421333421
6531004031333
7100462522656
oct16742751611
95152880723
102005652361
1193a158339
1247b832549
1325c6a605b
1415052ac2d
15bb12c576
hex778bd389

2005652361 has 4 divisors (see below), whose sum is σ = 2674203152. Its totient is φ = 1337101572.

The previous prime is 2005652357. The next prime is 2005652387. The reversal of 2005652361 is 1632565002.

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 not a de Polignac number, because 2005652361 - 22 = 2005652357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005652161) 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, 334275391 + ... + 334275396.

It is an arithmetic number, because the mean of its divisors is an integer number (668550788).

Almost surely, 22005652361 is an apocalyptic number.

It is an amenable number.

2005652361 is a deficient number, since it is larger than the sum of its proper divisors (668550791).

2005652361 is an equidigital number, since it uses as much as digits as its factorization.

2005652361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668550790.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2005652361 is about 44784.5102797831. The cubic root of 2005652361 is about 1261.1068549300.

The spelling of 2005652361 in words is "two billion, five million, six hundred fifty-two thousand, three hundred sixty-one".

Divisors: 1 3 668550787 2005652361