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30420112244 = 2225912935171
BaseRepresentation
bin11100010101001011…
…100001001101110100
32220112000210211000212
4130111023201031310
5444300022042434
621550320324552
72124560454614
oct342513411564
986460724025
1030420112244
11119a03a6635
125a8b773758
132b3a428c22
141688166a44
15bd09618ce
hex7152e1374

30420112244 has 12 divisors (see below), whose sum is σ = 53255760768. Its totient is φ = 15204180600.

The previous prime is 30420112199. The next prime is 30420112249. The reversal of 30420112244 is 44221102403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420112249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1457222 + ... + 1477949.

It is an arithmetic number, because the mean of its divisors is an integer number (4437980064).

Almost surely, 230420112244 is an apocalyptic number.

It is an amenable number.

30420112244 is a deficient number, since it is larger than the sum of its proper divisors (22835648524).

30420112244 is a wasteful number, since it uses less digits than its factorization.

30420112244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937766 (or 2937764 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 30420112244 its reverse (44221102403), we get a palindrome (74641214647).

The spelling of 30420112244 in words is "thirty billion, four hundred twenty million, one hundred twelve thousand, two hundred forty-four".

Divisors: 1 2 4 2591 5182 10364 2935171 5870342 11740684 7605028061 15210056122 30420112244