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2428005 = 351571031
BaseRepresentation
bin1001010000110001100101
311120100121010
421100301211
51110144010
6124012433
726431506
oct11206145
94510533
102428005
111409218
12991119
136701b8
14472bad
1532e620
hex250c65

2428005 has 16 divisors (see below), whose sum is σ = 3913344. Its totient is φ = 1285440.

The previous prime is 2428003. The next prime is 2428021. The reversal of 2428005 is 5008242.

It is not a de Polignac number, because 2428005 - 21 = 2428003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2428003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1840 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (244584).

22428005 is an apocalyptic number.

It is an amenable number.

2428005 is a deficient number, since it is larger than the sum of its proper divisors (1485339).

2428005 is a wasteful number, since it uses less digits than its factorization.

2428005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2428005 is about 1558.2056988729. The cubic root of 2428005 is about 134.4053405439.

The spelling of 2428005 in words is "two million, four hundred twenty-eight thousand, five".

Divisors: 1 3 5 15 157 471 785 1031 2355 3093 5155 15465 161867 485601 809335 2428005