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30203221321 = 713331903531
BaseRepresentation
bin11100001000010000…
…001001010101001001
32212221220200121121201
4130020100021111021
5443324011040241
621513011504201
72116315100560
oct341020112511
985856617551
1030203221321
1111899a27239
125a2abb8061
132b045096c0
141667428bd7
15bbb8bc931
hex708409549

30203221321 has 8 divisors (see below), whose sum is σ = 37173195584. Its totient is φ = 23897054160.

The previous prime is 30203221297. The next prime is 30203221327. The reversal of 30203221321 is 12312230203.

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

It is not a de Polignac number, because 30203221321 - 211 = 30203219273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30203221327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165951675 + ... + 165951856.

It is an arithmetic number, because the mean of its divisors is an integer number (4646649448).

Almost surely, 230203221321 is an apocalyptic number.

It is an amenable number.

30203221321 is a deficient number, since it is larger than the sum of its proper divisors (6969974263).

30203221321 is a wasteful number, since it uses less digits than its factorization.

30203221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331903551.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30203221321 its reverse (12312230203), we get a palindrome (42515451524).

The spelling of 30203221321 in words is "thirty billion, two hundred three million, two hundred twenty-one thousand, three hundred twenty-one".

Divisors: 1 7 13 91 331903531 2323324717 4314745903 30203221321