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12102102242 = 214394205039
BaseRepresentation
bin10110100010101011…
…10110110011100010
31011020102020111021222
423101111312303202
5144241114232432
65320514015042
7605621112626
oct132125666342
934212214258
1012102102242
11515035959a
122418b77482
1311ab363159
1482b3d9186
154ac6dd112
hex2d1576ce2

12102102242 has 8 divisors (see below), whose sum is σ = 18165772800. Its totient is φ = 6046844644.

The previous prime is 12102102241. The next prime is 12102102293. The reversal of 12102102242 is 24220120121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12102102242.

It is not an unprimeable number, because it can be changed into a prime (12102102241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099642 + ... + 2105397.

It is an arithmetic number, because the mean of its divisors is an integer number (2270721600).

Almost surely, 212102102242 is an apocalyptic number.

12102102242 is a deficient number, since it is larger than the sum of its proper divisors (6063670558).

12102102242 is a wasteful number, since it uses less digits than its factorization.

12102102242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206480.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12102102242 its reverse (24220120121), we get a palindrome (36322222363).

The spelling of 12102102242 in words is "twelve billion, one hundred two million, one hundred two thousand, two hundred forty-two".

Divisors: 1 2 1439 2878 4205039 8410078 6051051121 12102102242