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20230144443 = 335631330843
BaseRepresentation
bin10010110101110011…
…111000000110111011
31221012212120211002000
4102311303320012323
5312412404110233
613143230112043
71314215250645
oct226563700673
957185524060
1020230144443
118641430a43
123b0704b623
131ba5287892
14d9cab3895
157d607bd13
hex4b5cf81bb

20230144443 has 16 divisors (see below), whose sum is σ = 30023840640. Its totient is φ = 13462797672.

The previous prime is 20230144409. The next prime is 20230144463. The reversal of 20230144443 is 34444103202.

It is a happy number.

20230144443 is a `hidden beast` number, since 202 + 3 + 0 + 14 + 4 + 443 = 666.

It is not a de Polignac number, because 20230144443 - 214 = 20230128059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20230144463) 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, 650221 + ... + 680622.

It is an arithmetic number, because the mean of its divisors is an integer number (1876490040).

Almost surely, 220230144443 is an apocalyptic number.

20230144443 is a deficient number, since it is larger than the sum of its proper divisors (9793696197).

20230144443 is a wasteful number, since it uses less digits than its factorization.

20230144443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331415 (or 1331409 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20230144443 its reverse (34444103202), we get a palindrome (54674247645).

The spelling of 20230144443 in words is "twenty billion, two hundred thirty million, one hundred forty-four thousand, four hundred forty-three".

Divisors: 1 3 9 27 563 1689 5067 15201 1330843 3992529 11977587 35932761 749264609 2247793827 6743381481 20230144443