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2113203211 = 7389776057
BaseRepresentation
bin111110111110100…
…1110110000001011
312110021100211211121
41331331032300023
513311440000321
6545405140111
7103236634210
oct17575166013
95407324747
102113203211
11994936939
124ab85a637
13278a61702
14160925b07
15c57c4441
hex7df4ec0b

2113203211 has 8 divisors (see below), whose sum is σ = 2421300960. Its totient is φ = 1806658368.

The previous prime is 2113203203. The next prime is 2113203221. The reversal of 2113203211 is 1123023112.

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

It is a cyclic number.

It is not a de Polignac number, because 2113203211 - 23 = 2113203203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113203221) 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 7 ways as a sum of consecutive naturals, for example, 385306 + ... + 390751.

It is an arithmetic number, because the mean of its divisors is an integer number (302662620).

Almost surely, 22113203211 is an apocalyptic number.

2113203211 is a deficient number, since it is larger than the sum of its proper divisors (308097749).

2113203211 is an equidigital number, since it uses as much as digits as its factorization.

2113203211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776453.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2113203211 is about 45969.5900677829. The cubic root of 2113203211 is about 1283.2573309837.

Adding to 2113203211 its reverse (1123023112), we get a palindrome (3236226323).

The spelling of 2113203211 in words is "two billion, one hundred thirteen million, two hundred three thousand, two hundred eleven".

Divisors: 1 7 389 2723 776057 5432399 301886173 2113203211