Search a number
-
+
2648129 = 11240739
BaseRepresentation
bin1010000110100001000001
311222112112212
422012201001
51134220004
6132431505
731336331
oct12064101
94875485
102648129
111549640
12a78595
13719453
144cd0c1
1537496e
hex286841

2648129 has 4 divisors (see below), whose sum is σ = 2888880. Its totient is φ = 2407380.

The previous prime is 2648123. The next prime is 2648131. The reversal of 2648129 is 9218462.

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 2648129 - 28 = 2647873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2648095 and 2648104.

It is not an unprimeable number, because it can be changed into a prime (2648123) 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, 120359 + ... + 120380.

It is an arithmetic number, because the mean of its divisors is an integer number (722220).

22648129 is an apocalyptic number.

It is an amenable number.

2648129 is a deficient number, since it is larger than the sum of its proper divisors (240751).

2648129 is a wasteful number, since it uses less digits than its factorization.

2648129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240750.

The product of its digits is 6912, while the sum is 32.

The square root of 2648129 is about 1627.3072850571. The cubic root of 2648129 is about 138.3501748822.

The spelling of 2648129 in words is "two million, six hundred forty-eight thousand, one hundred twenty-nine".

Divisors: 1 11 240739 2648129