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20144311110 = 2325731125393
BaseRepresentation
bin10010110000101100…
…011100101101000110
31220222220002000212200
4102300230130231012
5312223420423420
613130522255330
71312123551000
oct226054345506
956886060780
1020144311110
1185a7a36100
123aa2357546
131b90564321
14d9152d370
157cd774b90
hex4b0b1cb46

20144311110 has 288 divisors, whose sum is σ = 67148827200. Its totient is φ = 4185054720.

The previous prime is 20144311087. The next prime is 20144311111. The reversal of 20144311110 is 1111344102.

20144311110 is a `hidden beast` number, since 201 + 44 + 311 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144311111) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3732574 + ... + 3737966.

It is an arithmetic number, because the mean of its divisors is an integer number (233155650).

Almost surely, 220144311110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20144311110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33574413600).

20144311110 is an abundant number, since it is smaller than the sum of its proper divisors (47004516090).

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

20144311110 is a wasteful number, since it uses less digits than its factorization.

20144311110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449 (or 5421 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20144311110 its reverse (1111344102), we get a palindrome (21255655212).

The spelling of 20144311110 in words is "twenty billion, one hundred forty-four million, three hundred eleven thousand, one hundred ten".