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102312343241 = 258013965441
BaseRepresentation
bin101111101001001001…
…0100111011011001001
3100210002022201112211222
41133102102213123021
53134013424440431
6115000204331425
710251252365663
oct1372222473311
9323068645758
10102312343241
113a432717879
12179b4243b75
1398568b6b94
144d481c3533
1529dc24857b
hex17d24a76c9

102312343241 has 4 divisors (see below), whose sum is σ = 102316334484. Its totient is φ = 102308352000.

The previous prime is 102312343229. The next prime is 102312343291. The reversal of 102312343241 is 142343213201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142343213201 = 720334744743.

It can be written as a sum of positive squares in 2 ways, for example, as 21317460025 + 80994883216 = 146005^2 + 284596^2 .

It is a cyclic number.

It is not a de Polignac number, because 102312343241 - 234 = 85132474057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102312343241.

It is not an unprimeable number, because it can be changed into a prime (102312343291) 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, 1956920 + ... + 2008521.

It is an arithmetic number, because the mean of its divisors is an integer number (25579083621).

Almost surely, 2102312343241 is an apocalyptic number.

It is an amenable number.

102312343241 is a deficient number, since it is larger than the sum of its proper divisors (3991243).

102312343241 is an equidigital number, since it uses as much as digits as its factorization.

102312343241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3991242.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 102312343241 its reverse (142343213201), we get a palindrome (244655556442).

The spelling of 102312343241 in words is "one hundred two billion, three hundred twelve million, three hundred forty-three thousand, two hundred forty-one".

Divisors: 1 25801 3965441 102312343241