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102173506105 = 51113913364749
BaseRepresentation
bin101111100101000000…
…0111111101000111001
3100202201122110220002211
41133022000333220321
53133222404143410
6114534324455121
710244645320666
oct1371200775071
9322648426084
10102173506105
113a37130a440
121797584a4a1
139833bc5c28
144d339a2a6d
1529cee7168a
hex17ca03fa39

102173506105 has 16 divisors (see below), whose sum is σ = 134716680000. Its totient is φ = 73773408960.

The previous prime is 102173506093. The next prime is 102173506111. The reversal of 102173506105 is 501605371201.

It is not a de Polignac number, because 102173506105 - 27 = 102173505977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6674730 + ... + 6690019.

It is an arithmetic number, because the mean of its divisors is an integer number (8419792500).

Almost surely, 2102173506105 is an apocalyptic number.

It is an amenable number.

102173506105 is a deficient number, since it is larger than the sum of its proper divisors (32543173895).

102173506105 is a wasteful number, since it uses less digits than its factorization.

102173506105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13364904.

The product of its (nonzero) digits is 6300, while the sum is 31.

Adding to 102173506105 its reverse (501605371201), we get a palindrome (603778877306).

The spelling of 102173506105 in words is "one hundred two billion, one hundred seventy-three million, five hundred six thousand, one hundred five".

Divisors: 1 5 11 55 139 695 1529 7645 13364749 66823745 147012239 735061195 1857700111 9288500555 20434701221 102173506105