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12240315232 = 25537217167
BaseRepresentation
bin10110110011001010…
…00110001101100000
31011121001022102212121
423121211012031200
5200032010041412
65342332234024
7612216651145
oct133145061540
934531272777
1012240315232
115211380002
12245730b914
131200b95ca2
148418d63cc
154b98e0107
hex2d9946360

12240315232 has 24 divisors (see below), whose sum is σ = 24552805536. Its totient is φ = 6004682112.

The previous prime is 12240315167. The next prime is 12240315239. The reversal of 12240315232 is 23251304221.

It is a junction number, because it is equal to n+sod(n) for n = 12240315197 and 12240315206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240315239) 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, 3606888 + ... + 3610279.

It is an arithmetic number, because the mean of its divisors is an integer number (1023033564).

Almost surely, 212240315232 is an apocalyptic number.

It is an amenable number.

12240315232 is an abundant number, since it is smaller than the sum of its proper divisors (12312490304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12240315232 is an equidigital number, since it uses as much as digits as its factorization.

12240315232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217230 (or 7217222 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 12240315232 its reverse (23251304221), we get a palindrome (35491619453).

The spelling of 12240315232 in words is "twelve billion, two hundred forty million, three hundred fifteen thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 7217167 14434334 28868668 57737336 115474672 230949344 382509851 765019702 1530039404 3060078808 6120157616 12240315232