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2748197 = 7138707
BaseRepresentation
bin1010011110111100100101
312011121211002
422132330211
51200420242
6134523045
732234144
oct12367445
95147732
102748197
111607841
12b06485
13752b6a
1451775b
15394432
hex29ef25

2748197 has 4 divisors (see below), whose sum is σ = 2786976. Its totient is φ = 2709420.

The previous prime is 2748191. The next prime is 2748227. The reversal of 2748197 is 7918472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2748197 - 26 = 2748133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2748197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748191) 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, 19283 + ... + 19424.

It is an arithmetic number, because the mean of its divisors is an integer number (696744).

22748197 is an apocalyptic number.

It is an amenable number.

2748197 is a deficient number, since it is larger than the sum of its proper divisors (38779).

2748197 is an equidigital number, since it uses as much as digits as its factorization.

2748197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38778.

The product of its digits is 28224, while the sum is 38.

The square root of 2748197 is about 1657.7686810891. The cubic root of 2748197 is about 140.0713411908.

The spelling of 2748197 in words is "two million, seven hundred forty-eight thousand, one hundred ninety-seven".

Divisors: 1 71 38707 2748197