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2011113469 = 3975065777
BaseRepresentation
bin111011111011111…
…0010011111111101
312012011021011001001
41313313302133331
513104321112334
6531321050301
7100560116401
oct16767623775
95164234031
102011113469
11942248352
12481626991
13260868991
1415114d101
15bb85a714
hex77df27fd

2011113469 has 4 divisors (see below), whose sum is σ = 2016179644. Its totient is φ = 2006047296.

The previous prime is 2011113451. The next prime is 2011113479. The reversal of 2011113469 is 9643111102.

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 1384212025 + 626901444 = 37205^2 + 25038^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011113469 - 27 = 2011113341 is a prime.

It is a super-2 number, since 2×20111134692 = 8089154770386427922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011113479) 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, 2532492 + ... + 2533285.

It is an arithmetic number, because the mean of its divisors is an integer number (504044911).

Almost surely, 22011113469 is an apocalyptic number.

It is an amenable number.

2011113469 is a deficient number, since it is larger than the sum of its proper divisors (5066175).

2011113469 is an equidigital number, since it uses as much as digits as its factorization.

2011113469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066174.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 2011113469 is about 44845.4397793131. The cubic root of 2011113469 is about 1262.2504228939.

The spelling of 2011113469 in words is "two billion, eleven million, one hundred thirteen thousand, four hundred sixty-nine".

Divisors: 1 397 5065777 2011113469