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102010043 = 130778049
BaseRepresentation
bin1100001010010…
…00110010111011
321002221122110202
412011020302323
5202103310133
614042232415
72346033242
oct605106273
9232848422
10102010043
1152644723
122a1b570b
1318198695
14d795959
158e502e8
hex6148cbb

102010043 has 4 divisors (see below), whose sum is σ = 102089400. Its totient is φ = 101930688.

The previous prime is 102010039. The next prime is 102010087. The reversal of 102010043 is 340010201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340010201 = 3110968071.

It is a cyclic number.

It is not a de Polignac number, because 102010043 - 22 = 102010039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102010033) by changing a digit.

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, 37718 + ... + 40331.

It is an arithmetic number, because the mean of its divisors is an integer number (25522350).

Almost surely, 2102010043 is an apocalyptic number.

102010043 is a deficient number, since it is larger than the sum of its proper divisors (79357).

102010043 is an equidigital number, since it uses as much as digits as its factorization.

102010043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79356.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102010043 is about 10100.0021287126. The cubic root of 102010043 is about 467.2482070373.

Adding to 102010043 its reverse (340010201), we get a palindrome (442020244).

The spelling of 102010043 in words is "one hundred two million, ten thousand, forty-three".

Divisors: 1 1307 78049 102010043