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30412331 = 191600649
BaseRepresentation
bin111010000000…
…0111000101011
32010020002212122
41310000320223
530241143311
63003501455
7516333455
oct164007053
963202778
1030412331
1116192264
12a22788b
1363ba881
1440792d5
152a0b0db
hex1d00e2b

30412331 has 4 divisors (see below), whose sum is σ = 32013000. Its totient is φ = 28811664.

The previous prime is 30412321. The next prime is 30412339. The reversal of 30412331 is 13321403.

It is a happy number.

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 30412331 - 26 = 30412267 is a prime.

It is a super-2 number, since 2×304123312 = 1849819753707122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30412339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800306 + ... + 800343.

It is an arithmetic number, because the mean of its divisors is an integer number (8003250).

Almost surely, 230412331 is an apocalyptic number.

30412331 is a deficient number, since it is larger than the sum of its proper divisors (1600669).

30412331 is a wasteful number, since it uses less digits than its factorization.

30412331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600668.

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

The square root of 30412331 is about 5514.7376184185. The cubic root of 30412331 is about 312.1403427080.

Adding to 30412331 its reverse (13321403), we get a palindrome (43733734).

The spelling of 30412331 in words is "thirty million, four hundred twelve thousand, three hundred thirty-one".

Divisors: 1 19 1600649 30412331