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12200240023 = 20183604481
BaseRepresentation
bin10110101110011000…
…01110001110010111
31011111020220102000121
423113030032032113
5144441230140043
65334341252411
7611222220616
oct132714161627
934436812017
1012200240023
1151a07989a4
122445a04107
1311c57a414a
1483a46387d
154b6125ded
hex2d730e397

12200240023 has 4 divisors (see below), whose sum is σ = 12200864688. Its totient is φ = 12199615360.

The previous prime is 12200239981. The next prime is 12200240027. The reversal of 12200240023 is 32004200221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12200240023 - 233 = 3610305431 is a prime.

It is a super-2 number, since 2×122002400232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200239979 and 12200240006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200240027) 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 3 ways as a sum of consecutive naturals, for example, 282058 + ... + 322423.

It is an arithmetic number, because the mean of its divisors is an integer number (3050216172).

Almost surely, 212200240023 is an apocalyptic number.

12200240023 is a deficient number, since it is larger than the sum of its proper divisors (624665).

12200240023 is an equidigital number, since it uses as much as digits as its factorization.

12200240023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624664.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 12200240023 its reverse (32004200221), we get a palindrome (44204440244).

The spelling of 12200240023 in words is "twelve billion, two hundred million, two hundred forty thousand, twenty-three".

Divisors: 1 20183 604481 12200240023