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7430030213 = 33521221653
BaseRepresentation
bin1101110101101110…
…10100001110000101
3201011210220122100012
412322313110032011
5110204041431323
63225135200005
7352060133444
oct67267241605
921153818305
107430030213
113173070741
121534376005
139154301a8
14506adad5b
152d7460678
hex1badd4385

7430030213 has 4 divisors (see below), whose sum is σ = 7430285388. Its totient is φ = 7429775040.

The previous prime is 7430030137. The next prime is 7430030219. The reversal of 7430030213 is 3120300347.

It is a happy number.

7430030213 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1240589284 + 6189440929 = 35222^2 + 78673^2 .

It is a cyclic number.

It is not a de Polignac number, because 7430030213 - 212 = 7430026117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7430030219) 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, 77306 + ... + 144347.

It is an arithmetic number, because the mean of its divisors is an integer number (1857571347).

Almost surely, 27430030213 is an apocalyptic number.

It is an amenable number.

7430030213 is a deficient number, since it is larger than the sum of its proper divisors (255175).

7430030213 is a wasteful number, since it uses less digits than its factorization.

7430030213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255174.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 7430030213 is about 86197.6230124706. The cubic root of 7430030213 is about 1951.3276265173.

The spelling of 7430030213 in words is "seven billion, four hundred thirty million, thirty thousand, two hundred thirteen".

Divisors: 1 33521 221653 7430030213