Base | Representation |
---|---|
bin | 110010110110… |
… | …111000111111 |
3 | 221002100002221 |
4 | 302312320333 |
5 | 11403111111 |
6 | 1153430211 |
7 | 221214616 |
oct | 62667077 |
9 | 27070087 |
10 | 13332031 |
11 | 7586609 |
12 | 456b367 |
13 | 29ba39b |
14 | 1ab087d |
15 | 1285371 |
hex | cb6e3f |
13332031 has 4 divisors (see below), whose sum is σ = 13356952. Its totient is φ = 13307112.
The previous prime is 13332023. The next prime is 13332037. The reversal of 13332031 is 13023331.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13023331 = 389 ⋅33479.
It is a cyclic number.
It is not a de Polignac number, because 13332031 - 23 = 13332023 is a prime.
It is a super-2 number, since 2×133320312 = 355486101169922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13331996 and 13332014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13332037) 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, 11640 + ... + 12733.
It is an arithmetic number, because the mean of its divisors is an integer number (3339238).
Almost surely, 213332031 is an apocalyptic number.
13332031 is a deficient number, since it is larger than the sum of its proper divisors (24921).
13332031 is an equidigital number, since it uses as much as digits as its factorization.
13332031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24920.
The product of its (nonzero) digits is 162, while the sum is 16.
The square root of 13332031 is about 3651.3053830103. The cubic root of 13332031 is about 237.1184996134.
Adding to 13332031 its reverse (13023331), we get a palindrome (26355362).
It can be divided in two parts, 1333 and 2031, that added together give a square (3364 = 582).
The spelling of 13332031 in words is "thirteen million, three hundred thirty-two thousand, thirty-one".
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