Base | Representation |
---|---|
bin | 111010101000… |
… | …1011100011101 |
3 | 2010211212111202 |
4 | 1311101130131 |
5 | 30332223201 |
6 | 3014525245 |
7 | 522206462 |
oct | 165213435 |
9 | 63755452 |
10 | 30742301 |
11 | 16398167 |
12 | a366825 |
13 | 64a4b15 |
14 | 4123669 |
15 | 2a73c6b |
hex | 1d5171d |
30742301 has 4 divisors (see below), whose sum is σ = 31573212. Its totient is φ = 29911392.
The previous prime is 30742259. The next prime is 30742303. The reversal of 30742301 is 10324703.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 10725625 + 20016676 = 3275^2 + 4474^2 .
It is a de Polignac number, because none of the positive numbers 2k-30742301 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30742303) 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, 415400 + ... + 415473.
It is an arithmetic number, because the mean of its divisors is an integer number (7893303).
Almost surely, 230742301 is an apocalyptic number.
It is an amenable number.
30742301 is a deficient number, since it is larger than the sum of its proper divisors (830911).
30742301 is an equidigital number, since it uses as much as digits as its factorization.
30742301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 830910.
The product of its (nonzero) digits is 504, while the sum is 20.
The square root of 30742301 is about 5544.5740142954. The cubic root of 30742301 is about 313.2651789545.
The spelling of 30742301 in words is "thirty million, seven hundred forty-two thousand, three hundred one".
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