Base | Representation |
---|---|
bin | 100111000011… |
… | …101110100111 |
3 | 201021012010001 |
4 | 213003232213 |
5 | 10110121022 |
6 | 1003242131 |
7 | 153012661 |
oct | 47035647 |
9 | 21235101 |
10 | 10238887 |
11 | 586369a |
12 | 3519347 |
13 | 2176519 |
14 | 1507531 |
15 | d73b27 |
hex | 9c3ba7 |
10238887 has 4 divisors (see below), whose sum is σ = 10684080. Its totient is φ = 9793696.
The previous prime is 10238863. The next prime is 10238909. The reversal of 10238887 is 78883201.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78883201 = 71 ⋅1111031.
It is a cyclic number.
It is not a de Polignac number, because 10238887 - 27 = 10238759 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10238087) 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, 222562 + ... + 222607.
It is an arithmetic number, because the mean of its divisors is an integer number (2671020).
Almost surely, 210238887 is an apocalyptic number.
10238887 is a deficient number, since it is larger than the sum of its proper divisors (445193).
10238887 is an equidigital number, since it uses as much as digits as its factorization.
10238887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 445192.
The product of its (nonzero) digits is 21504, while the sum is 37.
The square root of 10238887 is about 3199.8260890242. The cubic root of 10238887 is about 217.1455414727.
The spelling of 10238887 in words is "ten million, two hundred thirty-eight thousand, eight hundred eighty-seven".
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