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4492839 = 313115201
BaseRepresentation
bin10001001000111000100111
322110021000110
4101020320213
52122232324
6240144103
753121441
oct21107047
98407013
104492839
11259959a
121608033
13c13cb0
1484d491
155db329
hex448e27

4492839 has 8 divisors (see below), whose sum is σ = 6451312. Its totient is φ = 2764800.

The previous prime is 4492837. The next prime is 4492853. The reversal of 4492839 is 9382944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4492839 - 21 = 4492837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 115201 = 4492839 / (4 + 4 + 9 + 2 + 8 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4492797 and 4492806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4492837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57562 + ... + 57639.

It is an arithmetic number, because the mean of its divisors is an integer number (806414).

Almost surely, 24492839 is an apocalyptic number.

4492839 is a deficient number, since it is larger than the sum of its proper divisors (1958473).

4492839 is a wasteful number, since it uses less digits than its factorization.

4492839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115217.

The product of its digits is 62208, while the sum is 39.

The square root of 4492839 is about 2119.6318076496. The cubic root of 4492839 is about 165.0087415020.

The spelling of 4492839 in words is "four million, four hundred ninety-two thousand, eight hundred thirty-nine".

Divisors: 1 3 13 39 115201 345603 1497613 4492839