Search a number
-
+
2003042431 = 13449343163
BaseRepresentation
bin111011101100100…
…0000000001111111
312011121002002122201
41313121000001333
513100234324211
6530432052331
7100431402565
oct16731000177
95147062581
102003042431
11938735475
1247a9940a7
1325bca1110
1415004ba35
15bacb40c1
hex7764007f

2003042431 has 8 divisors (see below), whose sum is σ = 2161933200. Its totient is φ = 1844838912.

The previous prime is 2003042429. The next prime is 2003042467. The reversal of 2003042431 is 1342403002.

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 2003042431 - 21 = 2003042429 is a prime.

It is a super-2 number, since 2×20030424312 = 8024357960772779522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003042399 and 2003042408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003042411) 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, 165745 + ... + 177418.

It is an arithmetic number, because the mean of its divisors is an integer number (270241650).

Almost surely, 22003042431 is an apocalyptic number.

2003042431 is a deficient number, since it is larger than the sum of its proper divisors (158890769).

2003042431 is a wasteful number, since it uses less digits than its factorization.

2003042431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343625.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2003042431 is about 44755.3620362968. The cubic root of 2003042431 is about 1260.5595966918.

Adding to 2003042431 its reverse (1342403002), we get a palindrome (3345445433).

The spelling of 2003042431 in words is "two billion, three million, forty-two thousand, four hundred thirty-one".

Divisors: 1 13 449 5837 343163 4461119 154080187 2003042431