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30134321 = 74304903
BaseRepresentation
bin111001011110…
…1000000110001
32002200222111222
41302331000301
530203244241
62553514425
7514065110
oct162750061
962628458
1030134321
11160123a8
12a112a15
136321179
144005c77
1529a3a4b
hex1cbd031

30134321 has 4 divisors (see below), whose sum is σ = 34439232. Its totient is φ = 25829412.

The previous prime is 30134287. The next prime is 30134333. The reversal of 30134321 is 12343103.

It is a happy number.

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 not a de Polignac number, because 30134321 - 214 = 30117937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30134321.

It is not an unprimeable number, because it can be changed into a prime (30134341) 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, 2152445 + ... + 2152458.

It is an arithmetic number, because the mean of its divisors is an integer number (8609808).

Almost surely, 230134321 is an apocalyptic number.

It is an amenable number.

30134321 is a deficient number, since it is larger than the sum of its proper divisors (4304911).

30134321 is an equidigital number, since it uses as much as digits as its factorization.

30134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304910.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 30134321 is about 5489.4736541858. The cubic root of 30134321 is about 311.1863008411.

Adding to 30134321 its reverse (12343103), we get a palindrome (42477424).

The spelling of 30134321 in words is "thirty million, one hundred thirty-four thousand, three hundred twenty-one".

Divisors: 1 7 4304903 30134321