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30241613 = 45136701
BaseRepresentation
bin111001101011…
…1001101001101
32002220102200202
41303113031031
530220212423
63000103245
7515022653
oct163271515
962812622
1030241613
1116085a76
12a164b25
13635ac5c
144032dd3
1529c5728
hex1cd734d

30241613 has 4 divisors (see below), whose sum is σ = 30252828. Its totient is φ = 30230400.

The previous prime is 30241609. The next prime is 30241643. The reversal of 30241613 is 31614203.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3636649 + 26604964 = 1907^2 + 5158^2 .

It is a cyclic number.

It is not a de Polignac number, because 30241613 - 22 = 30241609 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 (30241643) 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, 1163 + ... + 7863.

It is an arithmetic number, because the mean of its divisors is an integer number (7563207).

Almost surely, 230241613 is an apocalyptic number.

It is an amenable number.

30241613 is a deficient number, since it is larger than the sum of its proper divisors (11215).

30241613 is an equidigital number, since it uses as much as digits as its factorization.

30241613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11214.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30241613 is about 5499.2374925984. The cubic root of 30241613 is about 311.5551853598. Note that the first 3 decimals are identical.

Adding to 30241613 its reverse (31614203), we get a palindrome (61855816).

The spelling of 30241613 in words is "thirty million, two hundred forty-one thousand, six hundred thirteen".

Divisors: 1 4513 6701 30241613