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5428385 = 51085677
BaseRepresentation
bin10100101101010010100001
3101012210100022
4110231102201
52342202020
6312203225
764066124
oct24552241
911183308
105428385
113078476
121999515
131180a81
14a143bb
15723625
hex52d4a1

5428385 has 4 divisors (see below), whose sum is σ = 6514068. Its totient is φ = 4342704.

The previous prime is 5428349. The next prime is 5428387. The reversal of 5428385 is 5838245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2217121 + 3211264 = 1489^2 + 1792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5428385 is a prime.

It is a d-powerful number, because it can be written as 54 + 410 + 222 + 83 + 311 + 84 + 55 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5428387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542834 + ... + 542843.

It is an arithmetic number, because the mean of its divisors is an integer number (1628517).

Almost surely, 25428385 is an apocalyptic number.

It is an amenable number.

5428385 is a deficient number, since it is larger than the sum of its proper divisors (1085683).

5428385 is a wasteful number, since it uses less digits than its factorization.

5428385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085682.

The product of its digits is 38400, while the sum is 35.

The square root of 5428385 is about 2329.8894823575. The cubic root of 5428385 is about 175.7479281463.

The spelling of 5428385 in words is "five million, four hundred twenty-eight thousand, three hundred eighty-five".

Divisors: 1 5 1085677 5428385