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30412311142 = 215206155571
BaseRepresentation
bin11100010100101101…
…110000101001100110
32220111111010110221011
4130110231300221212
5444241022424032
621545441212434
72124434244103
oct342455605146
986444113834
1030412311142
1111996a58544
125a8903111a
132b389271a5
1416870d5aaa
15bcee20247
hex714b70a66

30412311142 has 4 divisors (see below), whose sum is σ = 45618466716. Its totient is φ = 15206155570.

The previous prime is 30412311071. The next prime is 30412311173. The reversal of 30412311142 is 24111321403.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7603077784 + ... + 7603077787.

It is an arithmetic number, because the mean of its divisors is an integer number (11404616679).

Almost surely, 230412311142 is an apocalyptic number.

30412311142 is a deficient number, since it is larger than the sum of its proper divisors (15206155574).

30412311142 is a wasteful number, since it uses less digits than its factorization.

30412311142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15206155573.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 30412311142 its reverse (24111321403), we get a palindrome (54523632545).

The spelling of 30412311142 in words is "thirty billion, four hundred twelve million, three hundred eleven thousand, one hundred forty-two".

Divisors: 1 2 15206155571 30412311142