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30244243 = 151200293
BaseRepresentation
bin111001101011…
…1110110010011
32002220120022011
41303113312103
530220303433
63000123351
7515033431
oct163276623
962816264
1030244243
1116087a47
12a166557
13635c203
144033d51
1529c63cd
hex1cd7d93

30244243 has 4 divisors (see below), whose sum is σ = 30444688. Its totient is φ = 30043800.

The previous prime is 30244237. The next prime is 30244261. The reversal of 30244243 is 34244203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30244243 - 213 = 30236051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30244213) 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, 99996 + ... + 100297.

It is an arithmetic number, because the mean of its divisors is an integer number (7611172).

Almost surely, 230244243 is an apocalyptic number.

30244243 is a deficient number, since it is larger than the sum of its proper divisors (200445).

30244243 is a wasteful number, since it uses less digits than its factorization.

30244243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200444.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 30244243 is about 5499.4766114604. The cubic root of 30244243 is about 311.5642166945.

Adding to 30244243 its reverse (34244203), we get a palindrome (64488446).

The spelling of 30244243 in words is "thirty million, two hundred forty-four thousand, two hundred forty-three".

Divisors: 1 151 200293 30244243