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3129107 = 3179871
BaseRepresentation
bin1011111011111100010011
312212222022212
423323330103
51300112412
6151022335
735411522
oct13737423
95788285
103129107
111847a43
12106a9ab
13857357
145b64b9
1541c222
hex2fbf13

3129107 has 4 divisors (see below), whose sum is σ = 3139296. Its totient is φ = 3118920.

The previous prime is 3129103. The next prime is 3129121. The reversal of 3129107 is 7019213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7019213 = 20813373.

It is a cyclic number.

It is not a de Polignac number, because 3129107 - 22 = 3129103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3129103) 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, 4619 + ... + 5252.

It is an arithmetic number, because the mean of its divisors is an integer number (784824).

Almost surely, 23129107 is an apocalyptic number.

3129107 is a deficient number, since it is larger than the sum of its proper divisors (10189).

3129107 is an equidigital number, since it uses as much as digits as its factorization.

3129107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10188.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 3129107 is about 1768.9282065703. The cubic root of 3129107 is about 146.2649065576.

The spelling of 3129107 in words is "three million, one hundred twenty-nine thousand, one hundred seven".

Divisors: 1 317 9871 3129107