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312243501005 = 51797151250799
BaseRepresentation
bin1001000101100110010…
…10011011011111001101
31002211221210020022200022
410202303022123133031
520103433314013010
6355235341511525
731362453652502
oct4426312333715
91084853208608
10312243501005
11110470352877
12506218725a5
13235a156b967
14111812274a9
1581c74ccd55
hex48b329b7cd

312243501005 has 32 divisors (see below), whose sum is σ = 403479014400. Its totient is φ = 231135436800.

The previous prime is 312243500951. The next prime is 312243501013. The reversal of 312243501005 is 500105342213.

It is a happy number.

It is not a de Polignac number, because 312243501005 - 214 = 312243484621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1119596 + ... + 1370394.

It is an arithmetic number, because the mean of its divisors is an integer number (12608719200).

Almost surely, 2312243501005 is an apocalyptic number.

It is an amenable number.

312243501005 is a deficient number, since it is larger than the sum of its proper divisors (91235513395).

312243501005 is a wasteful number, since it uses less digits than its factorization.

312243501005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251069.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 312243501005 its reverse (500105342213), we get a palindrome (812348843218).

The spelling of 312243501005 in words is "three hundred twelve billion, two hundred forty-three million, five hundred one thousand, five".

Divisors: 1 5 17 85 97 151 485 755 1649 2567 8245 12835 14647 73235 248999 250799 1244995 1253995 4263583 21317915 24327503 37870649 121637515 189353245 413567551 643801033 2067837755 3219005165 3673452953 18367264765 62448700201 312243501005