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102102068 = 22171501501
BaseRepresentation
bin1100001010111…
…11010000110100
321010010022201002
412011133100310
5202114231233
614044222432
72346565445
oct605372064
9233108632
10102102068
11526a7882
122a23aa18
13181cb533
14d7bb2cc
158e6c6e8
hex615f434

102102068 has 12 divisors (see below), whose sum is σ = 189189252. Its totient is φ = 48048000.

The previous prime is 102102043. The next prime is 102102071. The reversal of 102102068 is 860201201.

102102068 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 51093904 + 51008164 = 7148^2 + 7142^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750683 + ... + 750818.

It is an arithmetic number, because the mean of its divisors is an integer number (15765771).

Almost surely, 2102102068 is an apocalyptic number.

It is an amenable number.

102102068 is a deficient number, since it is larger than the sum of its proper divisors (87087184).

102102068 is a wasteful number, since it uses less digits than its factorization.

102102068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501522 (or 1501520 counting only the distinct ones).

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

The square root of 102102068 is about 10104.5567938431. The cubic root of 102102068 is about 467.3886690009.

Adding to 102102068 its reverse (860201201), we get a palindrome (962303269).

The spelling of 102102068 in words is "one hundred two million, one hundred two thousand, sixty-eight".

Divisors: 1 2 4 17 34 68 1501501 3003002 6006004 25525517 51051034 102102068