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30030332231 = 32099358159
BaseRepresentation
bin11011111101111100…
…101000000101000111
32212111212100221101002
4123331330220011013
5443000231112411
621443514123515
72112115420004
oct337574500507
985455327332
1030030332231
1111810381099
1259a112059b
132aa7755373
14164c4a28ab
15bab61b33b
hex6fdf28147

30030332231 has 4 divisors (see below), whose sum is σ = 30039693600. Its totient is φ = 30020970864.

The previous prime is 30030332203. The next prime is 30030332239. The reversal of 30030332231 is 13223303003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30030332231 is a prime.

It is a super-2 number, since 2×300303322312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030332239) 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, 4675871 + ... + 4682288.

It is an arithmetic number, because the mean of its divisors is an integer number (7509923400).

Almost surely, 230030332231 is an apocalyptic number.

30030332231 is a deficient number, since it is larger than the sum of its proper divisors (9361369).

30030332231 is an equidigital number, since it uses as much as digits as its factorization.

30030332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361368.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 30030332231 its reverse (13223303003), we get a palindrome (43253635234).

The spelling of 30030332231 in words is "thirty billion, thirty million, three hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 3209 9358159 30030332231