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3100997 = 23313309
BaseRepresentation
bin1011110101000101000101
312211112202202
423311011011
51243212442
6150244245
735233544
oct13650505
95745682
103100997
111828909
121056685
13847613
145aa15b
15413c32
hex2f5145

3100997 has 4 divisors (see below), whose sum is σ = 3114540. Its totient is φ = 3087456.

The previous prime is 3100991. The next prime is 3101029. The reversal of 3100997 is 7990013.

3100997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 231361 + 2869636 = 481^2 + 1694^2 .

It is a cyclic number.

It is not a de Polignac number, because 3100997 - 218 = 2838853 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6422 + ... + 6887.

It is an arithmetic number, because the mean of its divisors is an integer number (778635).

Almost surely, 23100997 is an apocalyptic number.

It is an amenable number.

3100997 is a deficient number, since it is larger than the sum of its proper divisors (13543).

3100997 is a wasteful number, since it uses less digits than its factorization.

3100997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13542.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 3100997 is about 1760.9647923795. The cubic root of 3100997 is about 145.8256033635.

The spelling of 3100997 in words is "three million, one hundred thousand, nine hundred ninety-seven".

Divisors: 1 233 13309 3100997