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102243041 = 569179689
BaseRepresentation
bin1100001100000…
…01101011100001
321010101111002022
412012001223201
5202133234131
614051231225
72351023445
oct606015341
9233344068
10102243041
115279378a
122a2a8515
131824a754
14d816825
158e9937b
hex6181ae1

102243041 has 4 divisors (see below), whose sum is σ = 102423300. Its totient is φ = 102062784.

The previous prime is 102243019. The next prime is 102243059. The reversal of 102243041 is 140342201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44422225 + 57820816 = 6665^2 + 7604^2 .

It is a cyclic number.

It is not a de Polignac number, because 102243041 - 210 = 102242017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102243061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89276 + ... + 90413.

It is an arithmetic number, because the mean of its divisors is an integer number (25605825).

Almost surely, 2102243041 is an apocalyptic number.

It is an amenable number.

102243041 is a deficient number, since it is larger than the sum of its proper divisors (180259).

102243041 is an equidigital number, since it uses as much as digits as its factorization.

102243041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180258.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 102243041 is about 10111.5301018194. The cubic root of 102243041 is about 467.6036789506.

Adding to 102243041 its reverse (140342201), we get a palindrome (242585242).

The spelling of 102243041 in words is "one hundred two million, two hundred forty-three thousand, forty-one".

Divisors: 1 569 179689 102243041