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12310355644 = 2214621210491
BaseRepresentation
bin10110111011100000…
…10001111010111100
31011202221002212020221
423131300101322330
5200202422340034
65353313351124
7614030203456
oct133560217274
934687085227
1012310355644
115247969444
1224768684a4
13121254a012
1484ad292d6
154c0b27bb4
hex2ddc11ebc

12310355644 has 12 divisors (see below), whose sum is σ = 21544698168. Its totient is φ = 6154727600.

The previous prime is 12310355627. The next prime is 12310355689. The reversal of 12310355644 is 44655301321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46762 + ... + 163729.

It is an arithmetic number, because the mean of its divisors is an integer number (1795391514).

Almost surely, 212310355644 is an apocalyptic number.

It is an amenable number.

12310355644 is a deficient number, since it is larger than the sum of its proper divisors (9234342524).

12310355644 is a wasteful number, since it uses less digits than its factorization.

12310355644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225116 (or 225114 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 12310355644 its reverse (44655301321), we get a palindrome (56965656965).

The spelling of 12310355644 in words is "twelve billion, three hundred ten million, three hundred fifty-five thousand, six hundred forty-four".

Divisors: 1 2 4 14621 29242 58484 210491 420982 841964 3077588911 6155177822 12310355644