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20144131044 = 2231678677587
BaseRepresentation
bin10010110000101011…
…110000101111100100
31220222212201212212120
4102300223300233210
5312223344143134
613130514345540
71312122201012
oct226053605744
956885655776
1020144131044
1185a7922894
123aa228b2b0
131b9050038b
14d914c38b2
157cd73b649
hex4b0af0be4

20144131044 has 12 divisors (see below), whose sum is σ = 47002972464. Its totient is φ = 6714710344.

The previous prime is 20144130989. The next prime is 20144131057. The reversal of 20144131044 is 44013144102.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 839338782 + ... + 839338805.

It is an arithmetic number, because the mean of its divisors is an integer number (3916914372).

Almost surely, 220144131044 is an apocalyptic number.

It is an amenable number.

20144131044 is an abundant number, since it is smaller than the sum of its proper divisors (26858841420).

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

20144131044 is a wasteful number, since it uses less digits than its factorization.

20144131044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678677594 (or 1678677592 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20144131044 its reverse (44013144102), we get a palindrome (64157275146).

The spelling of 20144131044 in words is "twenty billion, one hundred forty-four million, one hundred thirty-one thousand, forty-four".

Divisors: 1 2 3 4 6 12 1678677587 3357355174 5036032761 6714710348 10072065522 20144131044