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102185097685 = 5118920875403
BaseRepresentation
bin101111100101010110…
…1001101100111010101
3100202202110021210202121
41133022231031213111
53133233341111220
6114535421135541
710245145666456
oct1371255154725
9322673253677
10102185097685
113a377907360
12179796ba5b1
139836424058
144d3533d12d
1529d0eb0eaa
hex17cab4d9d5

102185097685 has 16 divisors (see below), whose sum is σ = 135272617920. Its totient is φ = 73481415040.

The previous prime is 102185097643. The next prime is 102185097697. The reversal of 102185097685 is 586790581201.

It is not a de Polignac number, because 102185097685 - 213 = 102185089493 is a prime.

It is a congruent number.

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, 10432807 + ... + 10442596.

It is an arithmetic number, because the mean of its divisors is an integer number (8454538620).

Almost surely, 2102185097685 is an apocalyptic number.

It is an amenable number.

102185097685 is a deficient number, since it is larger than the sum of its proper divisors (33087520235).

102185097685 is a wasteful number, since it uses less digits than its factorization.

102185097685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20875508.

The product of its (nonzero) digits is 1209600, while the sum is 52.

The spelling of 102185097685 in words is "one hundred two billion, one hundred eighty-five million, ninety-seven thousand, six hundred eighty-five".

Divisors: 1 5 11 55 89 445 979 4895 20875403 104377015 229629433 1148147165 1857910867 9289554335 20437019537 102185097685