Search a number
-
+
3030020309 = 3478732047
BaseRepresentation
bin1011010010011010…
…0111000011010101
321211011111222110102
42310212213003111
522201141122214
61220355503445
7135041514311
oct26446470325
97734458412
103030020309
111315405118
127068b7b85
13393995834
1420a5bcb41
1512b023bde
hexb49a70d5

3030020309 has 4 divisors (see below), whose sum is σ = 3038752704. Its totient is φ = 3021287916.

The previous prime is 3030020303. The next prime is 3030020333. The reversal of 3030020309 is 9030200303.

3030020309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3030020309 - 216 = 3029954773 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 (3030020303) 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, 4365677 + ... + 4366370.

It is an arithmetic number, because the mean of its divisors is an integer number (759688176).

Almost surely, 23030020309 is an apocalyptic number.

It is an amenable number.

3030020309 is a deficient number, since it is larger than the sum of its proper divisors (8732395).

3030020309 is an equidigital number, since it uses as much as digits as its factorization.

3030020309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8732394.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 3030020309 is about 55045.6202526595. The cubic root of 3030020309 is about 1447.0443653099.

The spelling of 3030020309 in words is "three billion, thirty million, twenty thousand, three hundred nine".

Divisors: 1 347 8732047 3030020309