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2148017 = 11319009
BaseRepresentation
bin1000001100011010110001
311001010112012
420030122301
51022214032
6114012305
724154304
oct10143261
94033465
102148017
111237923
12877095
135a2921
143dcb3b
152c66b2
hex20c6b1

2148017 has 4 divisors (see below), whose sum is σ = 2167140. Its totient is φ = 2128896.

The previous prime is 2148011. The next prime is 2148019. The reversal of 2148017 is 7108412.

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 781456 + 1366561 = 884^2 + 1169^2 .

It is a cyclic number.

It is not a de Polignac number, because 2148017 - 210 = 2146993 is a prime.

It is a super-2 number, since 2×21480172 = 9227954064578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2147983 and 2148001.

It is not an unprimeable number, because it can be changed into a prime (2148011) 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, 9392 + ... + 9617.

It is an arithmetic number, because the mean of its divisors is an integer number (541785).

22148017 is an apocalyptic number.

It is an amenable number.

2148017 is a deficient number, since it is larger than the sum of its proper divisors (19123).

2148017 is a wasteful number, since it uses less digits than its factorization.

2148017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19122.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 2148017 is about 1465.6114764835. The cubic root of 2148017 is about 129.0265954820.

The spelling of 2148017 in words is "two million, one hundred forty-eight thousand, seventeen".

Divisors: 1 113 19009 2148017