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30211204233 = 371438628773
BaseRepresentation
bin11100001000101110…
…100110010010001001
32212222110201012010010
4130020232212102021
5443333032013413
621513454542133
72116442666430
oct341056462211
985873635103
1030211204233
11118a3489991
125a31807949
132b06073112
141668506117
15bbc447dc3
hex708ba6489

30211204233 has 8 divisors (see below), whose sum is σ = 46036120768. Its totient is φ = 17263545264.

The previous prime is 30211204229. The next prime is 30211204259. The reversal of 30211204233 is 33240211203.

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

It is not a de Polignac number, because 30211204233 - 22 = 30211204229 is a prime.

It is a super-2 number, since 2×302112042332 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1438628773 = 30211204233 / (3 + 0 + 2 + 1 + 1 + 2 + 0 + 4 + 2 + 3 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30211204273) 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, 719314366 + ... + 719314407.

It is an arithmetic number, because the mean of its divisors is an integer number (5754515096).

Almost surely, 230211204233 is an apocalyptic number.

It is an amenable number.

30211204233 is a deficient number, since it is larger than the sum of its proper divisors (15824916535).

30211204233 is a wasteful number, since it uses less digits than its factorization.

30211204233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438628783.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30211204233 its reverse (33240211203), we get a palindrome (63451415436).

The spelling of 30211204233 in words is "thirty billion, two hundred eleven million, two hundred four thousand, two hundred thirty-three".

Divisors: 1 3 7 21 1438628773 4315886319 10070401411 30211204233