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5128455 = 352291493
BaseRepresentation
bin10011100100000100000111
3100122112220210
4103210010013
52303102310
6301530503
761406523
oct23440407
910575823
105128455
1129930a2
121873a33
1310a73b7
14976d83
156b4820
hex4e4107

5128455 has 16 divisors (see below), whose sum is σ = 8246880. Its totient is φ = 2721408.

The previous prime is 5128433. The next prime is 5128463. The reversal of 5128455 is 5548215.

It is not a de Polignac number, because 5128455 - 26 = 5128391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2689 + ... + 4181.

It is an arithmetic number, because the mean of its divisors is an integer number (515430).

Almost surely, 25128455 is an apocalyptic number.

5128455 is a deficient number, since it is larger than the sum of its proper divisors (3118425).

5128455 is a wasteful number, since it uses less digits than its factorization.

5128455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730.

The product of its digits is 8000, while the sum is 30.

The square root of 5128455 is about 2264.6092378157. The cubic root of 5128455 is about 172.4495967001.

The spelling of 5128455 in words is "five million, one hundred twenty-eight thousand, four hundred fifty-five".

Divisors: 1 3 5 15 229 687 1145 1493 3435 4479 7465 22395 341897 1025691 1709485 5128455