Base | Representation |
---|---|
bin | 11100010110000000000001 |
3 | 111222111020120 |
4 | 130112000001 |
5 | 3400231040 |
6 | 423130453 |
7 | 120104142 |
oct | 34260001 |
9 | 14874216 |
10 | 7430145 |
11 | 4215418 |
12 | 25a3a29 |
13 | 1701c48 |
14 | db5ac9 |
15 | 9bb7d0 |
hex | 716001 |
7430145 has 8 divisors (see below), whose sum is σ = 11888256. Its totient is φ = 3962736.
The previous prime is 7430141. The next prime is 7430147. The reversal of 7430145 is 5410347.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 7430145 - 22 = 7430141 is a prime.
It is an Ulam number.
It is an alternating number because its digits alternate between odd and even.
7430145 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (7430141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247657 + ... + 247686.
It is an arithmetic number, because the mean of its divisors is an integer number (1486032).
It is a Proth number, since it is equal to 907 ⋅ 213 + 1 and 907 < 213.
Almost surely, 27430145 is an apocalyptic number.
It is an amenable number.
7430145 is a deficient number, since it is larger than the sum of its proper divisors (4458111).
7430145 is a wasteful number, since it uses less digits than its factorization.
7430145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 495351.
The product of its (nonzero) digits is 1680, while the sum is 24.
The square root of 7430145 is about 2725.8292316284. The cubic root of 7430145 is about 195.1337675193.
The spelling of 7430145 in words is "seven million, four hundred thirty thousand, one hundred forty-five".
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