[go: up one dir, main page]

Search a number
-
+
2001002142 = 23333500357
BaseRepresentation
bin111011101000100…
…1101111010011110
312011110020102220110
41313101031322132
513044224032032
6530320230450
7100405144326
oct16721157236
95143212813
102001002142
11937571587
1247a16b426
1325b738549
1414da7a286
15baa0e7cc
hex7744de9e

2001002142 has 8 divisors (see below), whose sum is σ = 4002004296. Its totient is φ = 667000712.

The previous prime is 2001002137. The next prime is 2001002149. The reversal of 2001002142 is 2412001002.

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

2001002142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001002149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166750173 + ... + 166750184.

It is an arithmetic number, because the mean of its divisors is an integer number (500250537).

Almost surely, 22001002142 is an apocalyptic number.

2001002142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2001002142 is a wasteful number, since it uses less digits than its factorization.

2001002142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333500362.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2001002142 is about 44732.5624349869. The cubic root of 2001002142 is about 1260.1314513902.

Adding to 2001002142 its reverse (2412001002), we get a palindrome (4413003144).

The spelling of 2001002142 in words is "two billion, one million, two thousand, one hundred forty-two".

Divisors: 1 2 3 6 333500357 667000714 1000501071 2001002142