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12303022302 = 23210137318143
BaseRepresentation
bin10110111010101000…
…10011100011011110
31011202102022021210200
423131110103203132
5200144033203202
65352452244330
7613610651454
oct133524234336
934672267720
1012303022302
11524380a82a
1224743106a6
131210b8016c
14849d7a9d4
154c0179e1c
hex2dd5138de

12303022302 has 48 divisors (see below), whose sum is σ = 26994135168. Its totient is φ = 4049294400.

The previous prime is 12303022301. The next prime is 12303022327. The reversal of 12303022302 is 20322030321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303022301) 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 23 ways as a sum of consecutive naturals, for example, 669043 + ... + 687185.

It is an arithmetic number, because the mean of its divisors is an integer number (562377816).

Almost surely, 212303022302 is an apocalyptic number.

12303022302 is an abundant number, since it is smaller than the sum of its proper divisors (14691112866).

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

12303022302 is a wasteful number, since it uses less digits than its factorization.

12303022302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18625 (or 18622 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 12303022302 its reverse (20322030321), we get a palindrome (32625052623).

The spelling of 12303022302 in words is "twelve billion, three hundred three million, twenty-two thousand, three hundred two".

Divisors: 1 2 3 6 9 18 101 202 303 373 606 746 909 1119 1818 2238 3357 6714 18143 36286 37673 54429 75346 108858 113019 163287 226038 326574 339057 678114 1832443 3664886 5497329 6767339 10994658 13534678 16491987 20302017 32983974 40604034 60906051 121812102 683501239 1367002478 2050503717 4101007434 6151511151 12303022302