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4102309 = 19713041
BaseRepresentation
bin1111101001100010100101
321201102022101
433221202211
52022233214
6223532101
746604041
oct17514245
97642271
104102309
112352142
12145a031
13b08303
1478b021
15560774
hex3e98a5

4102309 has 8 divisors (see below), whose sum is σ = 4380480. Its totient is φ = 3830400.

The previous prime is 4102291. The next prime is 4102327. The reversal of 4102309 is 9032014.

It is an interprime number because it is at equal distance from previous prime (4102291) and next prime (4102327).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4102309 - 213 = 4094117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102339) 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, 172 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (547560).

Almost surely, 24102309 is an apocalyptic number.

It is an amenable number.

4102309 is a deficient number, since it is larger than the sum of its proper divisors (278171).

4102309 is a wasteful number, since it uses less digits than its factorization.

4102309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 4102309 is about 2025.4157597886. The cubic root of 4102309 is about 160.0821062963.

The spelling of 4102309 in words is "four million, one hundred two thousand, three hundred nine".

Divisors: 1 19 71 1349 3041 57779 215911 4102309