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2648069 = 4361583
BaseRepresentation
bin1010000110100000000101
311222112110122
422012200011
51134214234
6132431325
731336214
oct12064005
94875418
102648069
111549596
12a78545
13719408
144cd07b
1537492e
hex286805

2648069 has 4 divisors (see below), whose sum is σ = 2709696. Its totient is φ = 2586444.

The previous prime is 2648057. The next prime is 2648081. The reversal of 2648069 is 9608462.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9608462 = 24804231.

It is an interprime number because it is at equal distance from previous prime (2648057) and next prime (2648081).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2648069 is a prime.

It is a super-2 number, since 2×26480692 = 14024538857522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2648029) 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, 30749 + ... + 30834.

It is an arithmetic number, because the mean of its divisors is an integer number (677424).

22648069 is an apocalyptic number.

It is an amenable number.

2648069 is a deficient number, since it is larger than the sum of its proper divisors (61627).

2648069 is an equidigital number, since it uses as much as digits as its factorization.

2648069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61626.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2648069 is about 1627.2888495900. The cubic root of 2648069 is about 138.3491299843.

The spelling of 2648069 in words is "two million, six hundred forty-eight thousand, sixty-nine".

Divisors: 1 43 61583 2648069