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2011213270 = 251119962303
BaseRepresentation
bin111011111100000…
…1010110111010110
312012011110012221101
41313320022313112
513104332311040
6531323140314
7100561013353
oct16770126726
95164405841
102011213270
11942306330
1248167469a
132608a2231
1415117762a
15bb87a09a
hex77e0add6

2011213270 has 32 divisors (see below), whose sum is σ = 4157153280. Its totient is φ = 692857440.

The previous prime is 2011213261. The next prime is 2011213273. The reversal of 2011213270 is 723121102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011213273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479062 + ... + 483241.

It is an arithmetic number, because the mean of its divisors is an integer number (129911040).

Almost surely, 22011213270 is an apocalyptic number.

2011213270 is an abundant number, since it is smaller than the sum of its proper divisors (2145940010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011213270 is a wasteful number, since it uses less digits than its factorization.

2011213270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962340.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2011213270 is about 44846.5524873429. The cubic root of 2011213270 is about 1262.2713021684.

Adding to 2011213270 its reverse (723121102), we get a palindrome (2734334372).

The spelling of 2011213270 in words is "two billion, eleven million, two hundred thirteen thousand, two hundred seventy".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 2090 962303 1924606 4811515 9623030 10585333 18283757 21170666 36567514 52926665 91418785 105853330 182837570 201121327 402242654 1005606635 2011213270