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2148097 = 7306871
BaseRepresentation
bin1000001100011100000001
311001010122011
420030130001
51022214342
6114012521
724154450
oct10143401
94033564
102148097
111237996
12877141
135a2983
143dcb97
152c6717
hex20c701

2148097 has 4 divisors (see below), whose sum is σ = 2454976. Its totient is φ = 1841220.

The previous prime is 2148073. The next prime is 2148127. The reversal of 2148097 is 7908412.

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 a de Polignac number, because none of the positive numbers 2k-2148097 is a prime.

It is a super-2 number, since 2×21480972 = 9228641442818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153429 + ... + 153442.

It is an arithmetic number, because the mean of its divisors is an integer number (613744).

22148097 is an apocalyptic number.

It is an amenable number.

2148097 is a deficient number, since it is larger than the sum of its proper divisors (306879).

2148097 is an equidigital number, since it uses as much as digits as its factorization.

2148097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306878.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2148097 is about 1465.6387685920. The cubic root of 2148097 is about 129.0281972694.

The spelling of 2148097 in words is "two million, one hundred forty-eight thousand, ninety-seven".

Divisors: 1 7 306871 2148097