Base | Representation |
---|---|
bin | 101111101001… |
… | …010110100111 |
3 | 212111120021012 |
4 | 233221112213 |
5 | 11144141101 |
6 | 1123412435 |
7 | 211110302 |
oct | 57512647 |
9 | 25446235 |
10 | 12490151 |
11 | 7061043 |
12 | 422411b |
13 | 278412b |
14 | 1931b39 |
15 | 116abbb |
hex | be95a7 |
12490151 has 4 divisors (see below), whose sum is σ = 12506400. Its totient is φ = 12473904.
The previous prime is 12490147. The next prime is 12490157. The reversal of 12490151 is 15109421.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15109421 = 347 ⋅43543.
It is a cyclic number.
It is not a de Polignac number, because 12490151 - 22 = 12490147 is a prime.
It is a Duffinian number.
It is a plaindrome in base 15.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12490157) 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, 6911 + ... + 8528.
It is an arithmetic number, because the mean of its divisors is an integer number (3126600).
Almost surely, 212490151 is an apocalyptic number.
12490151 is a deficient number, since it is larger than the sum of its proper divisors (16249).
12490151 is an equidigital number, since it uses as much as digits as its factorization.
12490151 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16248.
The product of its (nonzero) digits is 360, while the sum is 23.
The square root of 12490151 is about 3534.1407725217. The cubic root of 12490151 is about 232.0184723203.
Adding to 12490151 its reverse (15109421), we get a palindrome (27599572).
The spelling of 12490151 in words is "twelve million, four hundred ninety thousand, one hundred fifty-one".
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