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2003103213 = 31381483491
BaseRepresentation
bin111011101100100…
…1110110111101101
312011121012012000220
41313121032313231
513100243300323
6530433241553
7100432045026
oct16731166755
95147165026
102003103213
11938777101
1247aa032b9
1325bcc2997
14150065c4d
15bacc70e3
hex7764eded

2003103213 has 8 divisors (see below), whose sum is σ = 2672743776. Its totient is φ = 1334432400.

The previous prime is 2003103211. The next prime is 2003103233. The reversal of 2003103213 is 3123013002.

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

It is not a de Polignac number, because 2003103213 - 21 = 2003103211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2003103192 and 2003103201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003103211) 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, 237603 + ... + 245888.

It is an arithmetic number, because the mean of its divisors is an integer number (334092972).

Almost surely, 22003103213 is an apocalyptic number.

It is an amenable number.

2003103213 is a deficient number, since it is larger than the sum of its proper divisors (669640563).

2003103213 is a wasteful number, since it uses less digits than its factorization.

2003103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484875.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2003103213 is about 44756.0410782723. The cubic root of 2003103213 is about 1260.5723470555.

Adding to 2003103213 its reverse (3123013002), we get a palindrome (5126116215).

The spelling of 2003103213 in words is "two billion, three million, one hundred three thousand, two hundred thirteen".

Divisors: 1 3 1381 4143 483491 1450473 667701071 2003103213