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12102404243 = 191128949157
BaseRepresentation
bin10110100010101110…
…00000100010010011
31011020102210211120012
423101113000202103
5144241203413433
65320524305135
7605623511246
oct132127004223
934212724505
1012102404243
115150545486
1224190a21ab
1311ab43a757
1482b47725d
154ac74c848
hex2d15c0893

12102404243 has 8 divisors (see below), whose sum is σ = 12175453440. Its totient is φ = 12029456320.

The previous prime is 12102404221. The next prime is 12102404267. The reversal of 12102404243 is 34240420121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12102404243 - 28 = 12102403987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102404203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221621 + ... + 270777.

It is an arithmetic number, because the mean of its divisors is an integer number (1521931680).

Almost surely, 212102404243 is an apocalyptic number.

12102404243 is a deficient number, since it is larger than the sum of its proper divisors (73049197).

12102404243 is a wasteful number, since it uses less digits than its factorization.

12102404243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50637.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12102404243 its reverse (34240420121), we get a palindrome (46342824364).

The spelling of 12102404243 in words is "twelve billion, one hundred two million, four hundred four thousand, two hundred forty-three".

Divisors: 1 191 1289 49157 246199 9388987 63363373 12102404243