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4307139 = 32478571
BaseRepresentation
bin10000011011100011000011
322002211021200
4100123203003
52100312024
6232152243
751416154
oct20334303
98084250
104307139
112482021
121538683
13b7a605
1480192b
155a12c9
hex41b8c3

4307139 has 6 divisors (see below), whose sum is σ = 6221436. Its totient is φ = 2871420.

The previous prime is 4307131. The next prime is 4307153. The reversal of 4307139 is 9317034.

It is not a de Polignac number, because 4307139 - 23 = 4307131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4307131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239277 + ... + 239294.

It is an arithmetic number, because the mean of its divisors is an integer number (1036906).

Almost surely, 24307139 is an apocalyptic number.

4307139 is a deficient number, since it is larger than the sum of its proper divisors (1914297).

4307139 is a wasteful number, since it uses less digits than its factorization.

4307139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478577 (or 478574 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 4307139 is about 2075.3647872121. The cubic root of 4307139 is about 162.7032753946.

It can be divided in two parts, 430 and 7139, that added together give a square (7569 = 872).

The spelling of 4307139 in words is "four million, three hundred seven thousand, one hundred thirty-nine".

Divisors: 1 3 9 478571 1435713 4307139