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102102103 = 972274637
BaseRepresentation
bin1100001010111…
…11010001010111
321010010022202101
412011133101113
5202114231403
614044222531
72346565525
oct605372127
9233108671
10102102103
11526a7904
122a23aa47
13181cb55c
14d7bb315
158e6c71d
hex615f457

102102103 has 8 divisors (see below), whose sum is σ = 103631472. Its totient is φ = 100582656.

The previous prime is 102102089. The next prime is 102102109. The reversal of 102102103 is 301201201.

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 102102103 - 25 = 102102071 is a prime.

It is a super-3 number, since 3×1021021033 (a number of 25 digits) contains 333 as substring.

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 102102103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102109) 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, 19701 + ... + 24337.

It is an arithmetic number, because the mean of its divisors is an integer number (12953934).

Almost surely, 2102102103 is an apocalyptic number.

102102103 is a deficient number, since it is larger than the sum of its proper divisors (1529369).

102102103 is an equidigital number, since it uses as much as digits as its factorization.

102102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 102102103 is about 10104.5585257348. The cubic root of 102102103 is about 467.3887224069.

Adding to 102102103 its reverse (301201201), we get a palindrome (403303304).

The spelling of 102102103 in words is "one hundred two million, one hundred two thousand, one hundred three".

Divisors: 1 97 227 4637 22019 449789 1052599 102102103