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102144313 = 176008489
BaseRepresentation
bin1100001011010…
…01100100111001
321010012110122201
412011221210321
5202122104223
614045150201
72350132555
oct605514471
9233173581
10102144313
1152726597
122a25b361
131821482b
14d7cc865
158e79ead
hex6169939

102144313 has 4 divisors (see below), whose sum is σ = 108152820. Its totient is φ = 96135808.

The previous prime is 102144299. The next prime is 102144337. The reversal of 102144313 is 313441201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313441201 = 1999156799.

It can be written as a sum of positive squares in 2 ways, for example, as 71707024 + 30437289 = 8468^2 + 5517^2 .

It is a cyclic number.

It is not a de Polignac number, because 102144313 - 29 = 102143801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102144353) 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, 3004228 + ... + 3004261.

It is an arithmetic number, because the mean of its divisors is an integer number (27038205).

Almost surely, 2102144313 is an apocalyptic number.

It is an amenable number.

102144313 is a deficient number, since it is larger than the sum of its proper divisors (6008507).

102144313 is an equidigital number, since it uses as much as digits as its factorization.

102144313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008506.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 102144313 is about 10106.6469711769. The cubic root of 102144313 is about 467.4531212109.

Adding to 102144313 its reverse (313441201), we get a palindrome (415585514).

The spelling of 102144313 in words is "one hundred two million, one hundred forty-four thousand, three hundred thirteen".

Divisors: 1 17 6008489 102144313