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10047139 = 71141509
BaseRepresentation
bin100110010100…
…111010100011
3200220110002021
4212110322203
510033002024
6555202311
7151253644
oct46247243
920813067
1010047139
115742623
123446397
13210a16b
1414976cb
15d36de4
hex994ea3

10047139 has 4 divisors (see below), whose sum is σ = 10188720. Its totient is φ = 9905560.

The previous prime is 10047133. The next prime is 10047161. The reversal of 10047139 is 93174001.

10047139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10047139 - 215 = 10014371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10047133) 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, 70684 + ... + 70825.

It is an arithmetic number, because the mean of its divisors is an integer number (2547180).

Almost surely, 210047139 is an apocalyptic number.

10047139 is a deficient number, since it is larger than the sum of its proper divisors (141581).

10047139 is an equidigital number, since it uses as much as digits as its factorization.

10047139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141580.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 10047139 is about 3169.7222275777. The cubic root of 10047139 is about 215.7814647883.

The spelling of 10047139 in words is "ten million, forty-seven thousand, one hundred thirty-nine".

Divisors: 1 71 141509 10047139