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102312440111 = 719769266467
BaseRepresentation
bin101111101001001001…
…0111111000100101111
3100210002022220110201202
41133102102333010233
53134013441040421
6115000210400115
710251253251260
oct1372222770457
9323068813652
10102312440111
113a432783632
12179b429003b
13985691bcbb
144d4820a967
1529dc26710b
hex17d24bf12f

102312440111 has 8 divisors (see below), whose sum is σ = 123082634880. Its totient is φ = 83080778328.

The previous prime is 102312440107. The next prime is 102312440117. The reversal of 102312440111 is 111044213201.

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 102312440111 - 22 = 102312440107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312440117) 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, 384633101 + ... + 384633366.

It is an arithmetic number, because the mean of its divisors is an integer number (15385329360).

Almost surely, 2102312440111 is an apocalyptic number.

102312440111 is a deficient number, since it is larger than the sum of its proper divisors (20770194769).

102312440111 is an equidigital number, since it uses as much as digits as its factorization.

102312440111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769266493.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 102312440111 its reverse (111044213201), we get a palindrome (213356653312).

The spelling of 102312440111 in words is "one hundred two billion, three hundred twelve million, four hundred forty thousand, one hundred eleven".

Divisors: 1 7 19 133 769266467 5384865269 14616062873 102312440111