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3100109 = 9533253
BaseRepresentation
bin1011110100110111001101
312211111112212
423310313031
51243200414
6150240205
735231135
oct13646715
95744485
103100109
111828181
121056065
138470ac
145a9ac5
1541383e
hex2f4dcd

3100109 has 4 divisors (see below), whose sum is σ = 3104316. Its totient is φ = 3095904.

The previous prime is 3100099. The next prime is 3100127. The reversal of 3100109 is 9010013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9010013 = 17352081.

It can be written as a sum of positive squares in 2 ways, for example, as 2464900 + 635209 = 1570^2 + 797^2 .

It is a cyclic number.

It is not a de Polignac number, because 3100109 - 216 = 3034573 is a prime.

It is a super-2 number, since 2×31001092 = 19221351623762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3100093 and 3100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674 + ... + 2579.

It is an arithmetic number, because the mean of its divisors is an integer number (776079).

Almost surely, 23100109 is an apocalyptic number.

It is an amenable number.

3100109 is a deficient number, since it is larger than the sum of its proper divisors (4207).

3100109 is an equidigital number, since it uses as much as digits as its factorization.

3100109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 3100109 is about 1760.7126398138. The cubic root of 3100109 is about 145.8116825182.

The spelling of 3100109 in words is "three million, one hundred thousand, one hundred nine".

Divisors: 1 953 3253 3100109