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30321122331 = 371397358571
BaseRepresentation
bin11100001111010001…
…111001110000011011
32220021010112121101210
4130033101321300123
5444044201403311
621532422514203
72122246200363
oct341721716033
986233477353
1030321122331
111194a534a95
125a62595963
132b22a7a106
141678d599a3
15bc6e0b3a6
hex70f479c1b

30321122331 has 16 divisors (see below), whose sum is σ = 41100956928. Its totient is φ = 19879120800.

The previous prime is 30321122311. The next prime is 30321122339. The reversal of 30321122331 is 13322112303.

It is not a de Polignac number, because 30321122331 - 213 = 30321114139 is a prime.

It is a super-2 number, since 2×303211223312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30321122298 and 30321122307.

It is not an unprimeable number, because it can be changed into a prime (30321122339) 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 15 ways as a sum of consecutive naturals, for example, 94725 + ... + 263846.

It is an arithmetic number, because the mean of its divisors is an integer number (2568809808).

Almost surely, 230321122331 is an apocalyptic number.

30321122331 is a deficient number, since it is larger than the sum of its proper divisors (10779834597).

30321122331 is a wasteful number, since it uses less digits than its factorization.

30321122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359042.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30321122331 its reverse (13322112303), we get a palindrome (43643234634).

The spelling of 30321122331 in words is "thirty billion, three hundred twenty-one million, one hundred twenty-two thousand, three hundred thirty-one".

Divisors: 1 3 71 213 397 1191 28187 84561 358571 1075713 25458541 76375623 142352687 427058061 10107040777 30321122331