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30443433142 = 219259790369
BaseRepresentation
bin11100010110100100…
…011110110010110110
32220120122200122021211
4130112210132302312
5444322004330032
621552512232034
72125262624563
oct342644366266
986518618254
1030443433142
1111a02584a01
125a9753b61a
132b42202a85
14168b2b786a
15bd2a1b747
hex71691ecb6

30443433142 has 8 divisors (see below), whose sum is σ = 45667578600. Its totient is φ = 15220906944.

The previous prime is 30443433113. The next prime is 30443433143. The reversal of 30443433142 is 24133434403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30443433143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356667 + ... + 433702.

It is an arithmetic number, because the mean of its divisors is an integer number (5708447325).

Almost surely, 230443433142 is an apocalyptic number.

30443433142 is a deficient number, since it is larger than the sum of its proper divisors (15224145458).

30443433142 is a wasteful number, since it uses less digits than its factorization.

30443433142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809630.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 30443433142 its reverse (24133434403), we get a palindrome (54576867545).

The spelling of 30443433142 in words is "thirty billion, four hundred forty-three million, four hundred thirty-three thousand, one hundred forty-two".

Divisors: 1 2 19259 38518 790369 1580738 15221716571 30443433142