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2001102213 = 311205329537
BaseRepresentation
bin111011101000110…
…0110010110000101
312011110102112011210
41313101212112011
513044240232323
6530322322033
7100406042145
oct16721462605
95143375153
102001102213
1193762a790
1247a1b9319
1325b771c66
1414daa4925
15baa2e293
hex77466585

2001102213 has 16 divisors (see below), whose sum is σ = 2912210496. Its totient is φ = 1212157440.

The previous prime is 2001102179. The next prime is 2001102227. The reversal of 2001102213 is 3122011002.

It is not a de Polignac number, because 2001102213 - 28 = 2001101957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001102253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52981 + ... + 82517.

It is an arithmetic number, because the mean of its divisors is an integer number (182013156).

Almost surely, 22001102213 is an apocalyptic number.

It is an amenable number.

2001102213 is a deficient number, since it is larger than the sum of its proper divisors (911108283).

2001102213 is a wasteful number, since it uses less digits than its factorization.

2001102213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31604.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2001102213 is about 44733.6809685946. The cubic root of 2001102213 is about 1260.1524576167.

Adding to 2001102213 its reverse (3122011002), we get a palindrome (5123113215).

The spelling of 2001102213 in words is "two billion, one million, one hundred two thousand, two hundred thirteen".

Divisors: 1 3 11 33 2053 6159 22583 29537 67749 88611 324907 974721 60639461 181918383 667034071 2001102213