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20144344302 = 233373043413
BaseRepresentation
bin10010110000101100…
…100100110011101110
31220222220010201102000
4102300230210303232
5312223423004202
613130523113130
71312124046525
oct226054446356
956886121360
1020144344302
1185a7a59035
123aa23727a6
131b90576474
14d9153b4bc
157cd77e91c
hex4b0b24cee

20144344302 has 16 divisors (see below), whose sum is σ = 44765209680. Its totient is φ = 6714781416.

The previous prime is 20144344273. The next prime is 20144344309. The reversal of 20144344302 is 20344344102.

It is a happy number.

20144344302 is a `hidden beast` number, since 2 + 0 + 14 + 4 + 344 + 302 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144344309) 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 7 ways as a sum of consecutive naturals, for example, 186521653 + ... + 186521760.

It is an arithmetic number, because the mean of its divisors is an integer number (2797825605).

Almost surely, 220144344302 is an apocalyptic number.

20144344302 is an abundant number, since it is smaller than the sum of its proper divisors (24620865378).

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

20144344302 is a wasteful number, since it uses less digits than its factorization.

20144344302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373043424 (or 373043418 counting only the distinct ones).

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

Adding to 20144344302 its reverse (20344344102), we get a palindrome (40488688404).

The spelling of 20144344302 in words is "twenty billion, one hundred forty-four million, three hundred forty-four thousand, three hundred two".

Divisors: 1 2 3 6 9 18 27 54 373043413 746086826 1119130239 2238260478 3357390717 6714781434 10072172151 20144344302