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30406342442 = 272171881603
BaseRepresentation
bin11100010100010110…
…111111011100101010
32220111001220020102012
4130110112333130222
5444233010424232
621545105235522
72124332434460
oct342426773452
986431806365
1030406342442
1111993651133
125a87032ba2
132b37617508
1416863c0830
15bce6419b2
hex7145bf72a

30406342442 has 8 divisors (see below), whose sum is σ = 52125158496. Its totient is φ = 13031289612.

The previous prime is 30406342441. The next prime is 30406342451. The reversal of 30406342442 is 24424360403.

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

It is a junction number, because it is equal to n+sod(n) for n = 30406342399 and 30406342408.

It is not an unprimeable number, because it can be changed into a prime (30406342441) 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, 1085940788 + ... + 1085940815.

It is an arithmetic number, because the mean of its divisors is an integer number (6515644812).

Almost surely, 230406342442 is an apocalyptic number.

30406342442 is a deficient number, since it is larger than the sum of its proper divisors (21718816054).

30406342442 is a wasteful number, since it uses less digits than its factorization.

30406342442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171881612.

The product of its (nonzero) digits is 55296, while the sum is 32.

The spelling of 30406342442 in words is "thirty billion, four hundred six million, three hundred forty-two thousand, four hundred forty-two".

Divisors: 1 2 7 14 2171881603 4343763206 15203171221 30406342442