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12310213302 = 23610381973
BaseRepresentation
bin10110111011011111…
…01111001010110110
31011202220211122000000
423131233233022312
5200202403311202
65353310332130
7614026041462
oct133557571266
934686748000
1012310213302
115247881502
1224767ba046
1312124ca2aa
1484accd4a2
154c0aea91c
hex2ddbef2b6

12310213302 has 56 divisors (see below), whose sum is σ = 27954445584. Its totient is φ = 4063515984.

The previous prime is 12310213283. The next prime is 12310213339. The reversal of 12310213302 is 20331201321.

12310213302 is a `hidden beast` number, since 1 + 2 + 310 + 21 + 330 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 109188 + ... + 191160.

Almost surely, 212310213302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12310213302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13977222792).

12310213302 is an abundant number, since it is smaller than the sum of its proper divisors (15644232282).

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

12310213302 is an equidigital number, since it uses as much as digits as its factorization.

12310213302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82096 (or 82081 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12310213302 its reverse (20331201321), we get a palindrome (32641414623).

The spelling of 12310213302 in words is "twelve billion, three hundred ten million, two hundred thirteen thousand, three hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 103 162 206 243 309 486 618 729 927 1458 1854 2781 5562 8343 16686 25029 50058 75087 81973 150174 163946 245919 491838 737757 1475514 2213271 4426542 6639813 8443219 13279626 16886438 19919439 25329657 39838878 50659314 59758317 75988971 119516634 151977942 227966913 455933826 683900739 1367801478 2051702217 4103404434 6155106651 12310213302