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30331441444 = 2253853167729
BaseRepresentation
bin11100001111111001…
…010001000100100100
32220021211221212120011
4130033321101010210
5444104322111234
621533432020004
72122432666303
oct341771210444
986254855504
1030331441444
1111955342987
125a65b31604
132b24c50cb5
14167a48443a
15bc7c98b64
hex70fe51124

30331441444 has 24 divisors (see below), whose sum is σ = 54145256760. Its totient is φ = 14862042624.

The previous prime is 30331441379. The next prime is 30331441489. The reversal of 30331441444 is 44414413303.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1537424100 + 28794017344 = 39210^2 + 169688^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96972 + ... + 264700.

It is an arithmetic number, because the mean of its divisors is an integer number (2256052365).

Almost surely, 230331441444 is an apocalyptic number.

It is an amenable number.

30331441444 is a deficient number, since it is larger than the sum of its proper divisors (23813815316).

30331441444 is a wasteful number, since it uses less digits than its factorization.

30331441444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168639 (or 168637 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 30331441444 its reverse (44414413303), we get a palindrome (74745854747).

The spelling of 30331441444 in words is "thirty billion, three hundred thirty-one million, four hundred forty-one thousand, four hundred forty-four".

Divisors: 1 2 4 53 106 212 853 1706 3412 45209 90418 167729 180836 335458 670916 8889637 17779274 35558548 143072837 286145674 572291348 7582860361 15165720722 30331441444