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12312202310 = 25233222679
BaseRepresentation
bin10110111011101110…
…10100110001000110
31011210001120200101222
423131313110301012
5200203410433220
65353421120342
7614051664362
oct133567246106
934701520358
1012312202310
115248a0a911
1224773b90b2
131212a45715
1484b28a2a2
154c0d8ee25
hex2dddd4c46

12312202310 has 24 divisors (see below), whose sum is σ = 22258469520. Its totient is φ = 4903527872.

The previous prime is 12312202307. The next prime is 12312202319. The reversal of 12312202310 is 1320221321.

It is a super-2 number, since 2×123122023102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312202319) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 531551 + ... + 554229.

It is an arithmetic number, because the mean of its divisors is an integer number (927436230).

Almost surely, 212312202310 is an apocalyptic number.

12312202310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312202310 is a deficient number, since it is larger than the sum of its proper divisors (9946267210).

12312202310 is an equidigital number, since it uses as much as digits as its factorization.

12312202310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23152 (or 22919 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12312202310 its reverse (1320221321), we get a palindrome (13632423631).

The spelling of 12312202310 in words is "twelve billion, three hundred twelve million, two hundred two thousand, three hundred ten".

Divisors: 1 2 5 10 233 466 1165 2330 22679 45358 54289 108578 113395 226790 271445 542890 5284207 10568414 26421035 52842070 1231220231 2462440462 6156101155 12312202310