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2001433 = 71372087
BaseRepresentation
bin111101000101000011001
310202200110011
413220220121
51003021213
6110521521
723004040
oct7505031
93680404
102001433
111147785
128062a1
13550ca5
143a1557
1529803d
hex1e8a19

2001433 has 8 divisors (see below), whose sum is σ = 2305152. Its totient is φ = 1702176.

The previous prime is 2001421. The next prime is 2001449. The reversal of 2001433 is 3341002.

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

It is not a de Polignac number, because 2001433 - 213 = 1993241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001413) 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, 85 + ... + 2002.

It is an arithmetic number, because the mean of its divisors is an integer number (288144).

22001433 is an apocalyptic number.

It is an amenable number.

2001433 is a deficient number, since it is larger than the sum of its proper divisors (303719).

2001433 is a wasteful number, since it uses less digits than its factorization.

2001433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2001433 is about 1414.7201136621. The cubic root of 2001433 is about 126.0221889200.

Adding to 2001433 its reverse (3341002), we get a palindrome (5342435).

The spelling of 2001433 in words is "two million, one thousand, four hundred thirty-three".

Divisors: 1 7 137 959 2087 14609 285919 2001433