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30443412020 = 2257439495337
BaseRepresentation
bin11100010110100100…
…011001101000110100
32220120122122120022112
4130112210121220310
5444322003141040
621552511550152
72125262506160
oct342644315064
986518576275
1030443412020
1111a0257004a
125a9752b358
132b421c6288
14168b2adca0
15bd2a15365
hex716919a34

30443412020 has 48 divisors (see below), whose sum is σ = 73230769920. Its totient is φ = 10413944064.

The previous prime is 30443412011. The next prime is 30443412023. The reversal of 30443412020 is 2021434403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30443412023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186209 + ... + 309128.

It is an arithmetic number, because the mean of its divisors is an integer number (1525641040).

Almost surely, 230443412020 is an apocalyptic number.

It is an amenable number.

30443412020 is an abundant number, since it is smaller than the sum of its proper divisors (42787357900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30443412020 is a wasteful number, since it uses less digits than its factorization.

30443412020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495792 (or 495790 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30443412020 its reverse (2021434403), we get a palindrome (32464846423).

The spelling of 30443412020 in words is "thirty billion, four hundred forty-three million, four hundred twelve thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 439 878 1756 2195 3073 4390 6146 8780 12292 15365 30730 61460 495337 990674 1981348 2476685 3467359 4953370 6934718 9906740 13869436 17336795 34673590 69347180 217452943 434905886 869811772 1087264715 1522170601 2174529430 3044341202 4349058860 6088682404 7610853005 15221706010 30443412020