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30482389 = 74354627
BaseRepresentation
bin111010001000…
…1111111010101
32010100122222101
41310101333111
530300414024
63005202101
7520044640
oct164217725
963318871
1030482389
111622a963
12a260331
136413722
144096a57
152a21c44
hex1d11fd5

30482389 has 4 divisors (see below), whose sum is σ = 34837024. Its totient is φ = 26127756.

The previous prime is 30482381. The next prime is 30482423. The reversal of 30482389 is 98328403.

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 30482389 - 23 = 30482381 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 (30482381) 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, 2177307 + ... + 2177320.

It is an arithmetic number, because the mean of its divisors is an integer number (8709256).

Almost surely, 230482389 is an apocalyptic number.

It is an amenable number.

30482389 is a deficient number, since it is larger than the sum of its proper divisors (4354635).

30482389 is an equidigital number, since it uses as much as digits as its factorization.

30482389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354634.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 30482389 is about 5521.0858533444. The cubic root of 30482389 is about 312.3798415908.

The spelling of 30482389 in words is "thirty million, four hundred eighty-two thousand, three hundred eighty-nine".

Divisors: 1 7 4354627 30482389