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2312213215 = 51326740841
BaseRepresentation
bin1000100111010001…
…1001001011011111
312222010211121020111
42021310121023133
514213411310330
61021234430451
7111204326254
oct21164311337
95863747214
102312213215
11a87203014
12546432427
132ab060200
1417d12b42b
15d7ed532a
hex89d192df

2312213215 has 24 divisors (see below), whose sum is σ = 3049427088. Its totient is φ = 1681954560.

The previous prime is 2312213179. The next prime is 2312213221. The reversal of 2312213215 is 5123122132.

It is not a de Polignac number, because 2312213215 - 219 = 2311688927 is a prime.

It is a Duffinian number.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 36195 + ... + 77035.

It is an arithmetic number, because the mean of its divisors is an integer number (127059462).

Almost surely, 22312213215 is an apocalyptic number.

2312213215 is a deficient number, since it is larger than the sum of its proper divisors (737213873).

2312213215 is a wasteful number, since it uses less digits than its factorization.

2312213215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40939 (or 40926 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 2312213215 is about 48085.4782132818. The cubic root of 2312213215 is about 1322.3384503265.

Adding to 2312213215 its reverse (5123122132), we get a palindrome (7435335347).

The spelling of 2312213215 in words is "two billion, three hundred twelve million, two hundred thirteen thousand, two hundred fifteen".

Divisors: 1 5 13 65 67 169 335 845 871 4355 11323 40841 56615 204205 530933 2654665 2736347 6902129 13681735 34510645 35572511 177862555 462442643 2312213215