Base | Representation |
---|---|
bin | 110111100111… |
… | …110011111111 |
3 | 1000102210100201 |
4 | 313213303333 |
5 | 12213042431 |
6 | 1240304331 |
7 | 234636115 |
oct | 67476377 |
9 | 30383321 |
10 | 14580991 |
11 | 8259a07 |
12 | 4a720a7 |
13 | 3036a09 |
14 | 1d17ab5 |
15 | 1430461 |
hex | de7cff |
14580991 has 4 divisors (see below), whose sum is σ = 14679000. Its totient is φ = 14482984.
The previous prime is 14580977. The next prime is 14581001. The reversal of 14580991 is 19908541.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19908541 = 31 ⋅642211.
It is a cyclic number.
It is not a de Polignac number, because 14580991 - 215 = 14548223 is a prime.
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 14580991.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (14580911) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48781 + ... + 49078.
It is an arithmetic number, because the mean of its divisors is an integer number (3669750).
Almost surely, 214580991 is an apocalyptic number.
14580991 is a deficient number, since it is larger than the sum of its proper divisors (98009).
14580991 is an equidigital number, since it uses as much as digits as its factorization.
14580991 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 98008.
The product of its (nonzero) digits is 12960, while the sum is 37.
The square root of 14580991 is about 3818.5063833913. The cubic root of 14580991 is about 244.3031203226.
The spelling of 14580991 in words is "fourteen million, five hundred eighty thousand, nine hundred ninety-one".
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