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2122023505 = 5771853933
BaseRepresentation
bin111111001111011…
…1000001001010001
312110212221222000011
41332132320021101
513321214223010
6550322154521
7103404621310
oct17636701121
95425858004
102122023505
11999910738
124b27b2a41
1327a82c314
14161b80277
15c6467a8a
hex7e7b8251

2122023505 has 16 divisors (see below), whose sum is σ = 2951195904. Its totient is φ = 1434605760.

The previous prime is 2122023499. The next prime is 2122023517. The reversal of 2122023505 is 5053202212.

It is not a de Polignac number, because 2122023505 - 25 = 2122023473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424482 + ... + 429451.

It is an arithmetic number, because the mean of its divisors is an integer number (184449744).

Almost surely, 22122023505 is an apocalyptic number.

It is an amenable number.

2122023505 is a deficient number, since it is larger than the sum of its proper divisors (829172399).

2122023505 is an equidigital number, since it uses as much as digits as its factorization.

2122023505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854016.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2122023505 is about 46065.4263520919. The cubic root of 2122023505 is about 1285.0402476455.

Adding to 2122023505 its reverse (5053202212), we get a palindrome (7175225717).

The spelling of 2122023505 in words is "two billion, one hundred twenty-two million, twenty-three thousand, five hundred five".

Divisors: 1 5 7 35 71 355 497 2485 853933 4269665 5977531 29887655 60629243 303146215 424404701 2122023505