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30421110442 = 255829272449
BaseRepresentation
bin11100010101001111…
…010100111010101010
32220112002200112022011
4130111033110322222
5444300301013232
621550353550134
72124602113042
oct342517247252
986462615264
1030421110442
11119a0a18598
125a8bb7534a
132b3a6b8388
141688346722
15bd0aac547
hex7153d4eaa

30421110442 has 8 divisors (see below), whose sum is σ = 45632650500. Its totient is φ = 15210226944.

The previous prime is 30421110431. The next prime is 30421110487. The reversal of 30421110442 is 24401112403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30105373081 + 315737361 = 173509^2 + 17769^2 .

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

It is a super-2 number, since 2×304211104422 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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, 24567 + ... + 247882.

Almost surely, 230421110442 is an apocalyptic number.

30421110442 is a deficient number, since it is larger than the sum of its proper divisors (15211540058).

30421110442 is a wasteful number, since it uses less digits than its factorization.

30421110442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328280.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 30421110442 its reverse (24401112403), we get a palindrome (54822222845).

The spelling of 30421110442 in words is "thirty billion, four hundred twenty-one million, one hundred ten thousand, four hundred forty-two".

Divisors: 1 2 55829 111658 272449 544898 15210555221 30421110442