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2113134447 = 37131093191
BaseRepresentation
bin111110111110011…
…1101111101101111
312110021020100111210
41331330331331233
513311430300242
6545403445503
7103236226554
oct17574757557
95407210453
102113134447
1199489a206
124ab826893
13278a39318
14160908a2b
15c57add9c
hex7df3df6f

2113134447 has 16 divisors (see below), whose sum is σ = 2859010560. Its totient is φ = 1388032800.

The previous prime is 2113134379. The next prime is 2113134449. The reversal of 2113134447 is 7444313112.

It is not a de Polignac number, because 2113134447 - 27 = 2113134319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113134449) 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, 660622 + ... + 663812.

It is an arithmetic number, because the mean of its divisors is an integer number (178688160).

Almost surely, 22113134447 is an apocalyptic number.

2113134447 is a deficient number, since it is larger than the sum of its proper divisors (745876113).

2113134447 is a wasteful number, since it uses less digits than its factorization.

2113134447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374.

The product of its digits is 8064, while the sum is 30.

The square root of 2113134447 is about 45968.8421324706. The cubic root of 2113134447 is about 1283.2434116939.

Adding to 2113134447 its reverse (7444313112), we get a palindrome (9557447559).

The spelling of 2113134447 in words is "two billion, one hundred thirteen million, one hundred thirty-four thousand, four hundred forty-seven".

Divisors: 1 3 71 213 3109 3191 9327 9573 220739 226561 662217 679683 9920819 29762457 704378149 2113134447