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5427405 = 3651489
BaseRepresentation
bin10100101101000011001101
3101012202000000
4110231003031
52342134110
6312154513
764063224
oct24550315
911182000
105427405
113077765
121998a39
1311804a9
14a13cbb
157231c0
hex52d0cd

5427405 has 28 divisors (see below), whose sum is σ = 9771420. Its totient is φ = 2892672.

The previous prime is 5427397. The next prime is 5427413. The reversal of 5427405 is 5047245.

It is an interprime number because it is at equal distance from previous prime (5427397) and next prime (5427413).

It can be written as a sum of positive squares in 2 ways, for example, as 1542564 + 3884841 = 1242^2 + 1971^2 .

It is not a de Polignac number, because 5427405 - 23 = 5427397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2901 + ... + 4389.

Almost surely, 25427405 is an apocalyptic number.

It is an amenable number.

5427405 is a deficient number, since it is larger than the sum of its proper divisors (4344015).

5427405 is an equidigital number, since it uses as much as digits as its factorization.

5427405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 5427405 is about 2329.6791624599. The cubic root of 5427405 is about 175.7373514379.

It can be divided in two parts, 5427 and 405, that added together give a cube (5832 = 183).

The spelling of 5427405 in words is "five million, four hundred twenty-seven thousand, four hundred five".

Divisors: 1 3 5 9 15 27 45 81 135 243 405 729 1215 1489 3645 4467 7445 13401 22335 40203 67005 120609 201015 361827 603045 1085481 1809135 5427405