Base | Representation |
---|---|
bin | 110010001010… |
… | …101110100111 |
3 | 220202010222101 |
4 | 302022232213 |
5 | 11331314033 |
6 | 1145512531 |
7 | 216532345 |
oct | 62125647 |
9 | 26663871 |
10 | 13151143 |
11 | 7472715 |
12 | 44a2747 |
13 | 2955c55 |
14 | 1a64995 |
15 | 124b97d |
hex | c8aba7 |
13151143 has 4 divisors (see below), whose sum is σ = 13278928. Its totient is φ = 13023360.
The previous prime is 13151113. The next prime is 13151167. The reversal of 13151143 is 34115131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34115131 = 107 ⋅318833.
It is a cyclic number.
It is not a de Polignac number, because 13151143 - 25 = 13151111 is a prime.
It is a super-3 number, since 3×131511433 (a number of 22 digits) contains 333 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 13151143.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13151113) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63738 + ... + 63943.
It is an arithmetic number, because the mean of its divisors is an integer number (3319732).
Almost surely, 213151143 is an apocalyptic number.
13151143 is a deficient number, since it is larger than the sum of its proper divisors (127785).
13151143 is a wasteful number, since it uses less digits than its factorization.
13151143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 127784.
The product of its digits is 180, while the sum is 19.
The square root of 13151143 is about 3626.4504684333. The cubic root of 13151143 is about 236.0412106047.
Adding to 13151143 its reverse (34115131), we get a palindrome (47266274).
The spelling of 13151143 in words is "thirteen million, one hundred fifty-one thousand, one hundred forty-three".
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