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2005401351 = 32333328649
BaseRepresentation
bin111011110000111…
…1111111100000111
312011202111221111010
41313201333330013
513101340320401
6530554413303
7100460426112
oct16741777407
95152457433
102005401351
11939aa6798
1247b731233
1325c618a25
141504a3579
15bb0cced6
hex7787ff07

2005401351 has 8 divisors (see below), whose sum is σ = 2674076400. Its totient is φ = 1336830272.

The previous prime is 2005401347. The next prime is 2005401361. The reversal of 2005401351 is 1531045002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2005401351 - 22 = 2005401347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005401361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55675 + ... + 84323.

It is an arithmetic number, because the mean of its divisors is an integer number (334259550).

Almost surely, 22005401351 is an apocalyptic number.

2005401351 is a deficient number, since it is larger than the sum of its proper divisors (668675049).

2005401351 is a wasteful number, since it uses less digits than its factorization.

2005401351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51985.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2005401351 is about 44781.7077722590. The cubic root of 2005401351 is about 1261.0542430144.

Adding to 2005401351 its reverse (1531045002), we get a palindrome (3536446353).

The spelling of 2005401351 in words is "two billion, five million, four hundred one thousand, three hundred fifty-one".

Divisors: 1 3 23333 28649 69999 85947 668467117 2005401351