Base | Representation |
---|---|
bin | 110010001101… |
… | …001001000000 |
3 | 220202122112100 |
4 | 302031021000 |
5 | 11332123044 |
6 | 1150030400 |
7 | 216603222 |
oct | 62151100 |
9 | 26678470 |
10 | 13161024 |
11 | 747a088 |
12 | 44a8400 |
13 | 295a5b6 |
14 | 1a68412 |
15 | 124e869 |
hex | c8d240 |
13161024 has 84 divisors (see below), whose sum is σ = 38362636. Its totient is φ = 4313088.
The previous prime is 13161023. The next prime is 13161047. The reversal of 13161024 is 42016131.
It is a happy number.
13161024 is a `hidden beast` number, since 1 + 31 + 610 + 24 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 2663424 + 10497600 = 1632^2 + 3240^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 13160988 and 13161006.
It is not an unprimeable number, because it can be changed into a prime (13161023) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41892 + ... + 42204.
Almost surely, 213161024 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13161024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19181318).
13161024 is an abundant number, since it is smaller than the sum of its proper divisors (25201612).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13161024 is a wasteful number, since it uses less digits than its factorization.
13161024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 404 (or 391 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
The square root of 13161024 is about 3627.8125640667. The cubic root of 13161024 is about 236.1003116609.
Adding to 13161024 its reverse (42016131), we get a palindrome (55177155).
The spelling of 13161024 in words is "thirteen million, one hundred sixty-one thousand, twenty-four".
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