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2000243213 = 6772954569
BaseRepresentation
bin111011100111001…
…0100101000001101
312011101210212211222
41313032110220031
513044030240323
6530252053125
7100365533603
oct16716245015
95141725758
102000243213
119370a3371
12479a641a5
1325b530c87
1414d91d873
15ba90e9c8
hex77394a0d

2000243213 has 4 divisors (see below), whose sum is σ = 2003198460. Its totient is φ = 1997287968.

The previous prime is 2000243209. The next prime is 2000243251. The reversal of 2000243213 is 3123420002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1488262084 + 511981129 = 38578^2 + 22627^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000243213 - 22 = 2000243209 is a prime.

It is a super-2 number, since 2×20002432132 = 8001945822305126738, 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 = 2000243191 and 2000243200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000248213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1476608 + ... + 1477961.

It is an arithmetic number, because the mean of its divisors is an integer number (500799615).

Almost surely, 22000243213 is an apocalyptic number.

It is an amenable number.

2000243213 is a deficient number, since it is larger than the sum of its proper divisors (2955247).

2000243213 is an equidigital number, since it uses as much as digits as its factorization.

2000243213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955246.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2000243213 is about 44724.0786713377. The cubic root of 2000243213 is about 1259.9721193545.

Adding to 2000243213 its reverse (3123420002), we get a palindrome (5123663215).

The spelling of 2000243213 in words is "two billion, two hundred forty-three thousand, two hundred thirteen".

Divisors: 1 677 2954569 2000243213