Base | Representation |
---|---|
bin | 110001111110… |
… | …100101111110 |
3 | 220122121210110 |
4 | 301332211332 |
5 | 11323221223 |
6 | 1144450450 |
7 | 216234420 |
oct | 61764576 |
9 | 26577713 |
10 | 13101438 |
11 | 7439339 |
12 | 4479a26 |
13 | 293943c |
14 | 1a50810 |
15 | 123bd93 |
hex | c7e97e |
13101438 has 32 divisors (see below), whose sum is σ = 30587904. Its totient is φ = 3663072.
The previous prime is 13101433. The next prime is 13101443. The reversal of 13101438 is 83410131.
It is an interprime number because it is at equal distance from previous prime (13101433) and next prime (13101443).
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13101433) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1345 + ... + 5292.
It is an arithmetic number, because the mean of its divisors is an integer number (955872).
Almost surely, 213101438 is an apocalyptic number.
13101438 is an abundant number, since it is smaller than the sum of its proper divisors (17486466).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13101438 is a wasteful number, since it uses less digits than its factorization.
13101438 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6696.
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 13101438 is about 3619.5908608571. The cubic root of 13101438 is about 235.7434610614.
Adding to 13101438 its reverse (83410131), we get a palindrome (96511569).
The spelling of 13101438 in words is "thirteen million, one hundred one thousand, four hundred thirty-eight".
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