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20143030144 = 273836412
BaseRepresentation
bin10010110000100111…
…100011111110000000
31220222210122221201111
4102300213203332000
5312223103431034
613130435013104
71312106634256
oct226047437600
956883587644
1020143030144
1185a7240756
123aa1a3a194
131b90206263
14d912b85d6
157cd5c0364
hex4b09e3f80

20143030144 has 48 divisors (see below), whose sum is σ = 40296332160. Its totient is φ = 10029547520.

The previous prime is 20143030111. The next prime is 20143030189. The reversal of 20143030144 is 44103034102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31424064 + ... + 31424704.

It is an arithmetic number, because the mean of its divisors is an integer number (839506920).

Almost surely, 220143030144 is an apocalyptic number.

It is an amenable number.

20143030144 is an abundant number, since it is smaller than the sum of its proper divisors (20153302016).

20143030144 is an frugal number, since it uses more digits than its factorization.

20143030144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20143030144 its reverse (44103034102), we get a palindrome (64246064246).

The spelling of 20143030144 in words is "twenty billion, one hundred forty-three million, thirty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 64 128 383 641 766 1282 1532 2564 3064 5128 6128 10256 12256 20512 24512 41024 49024 82048 245503 410881 491006 821762 982012 1643524 1964024 3287048 3928048 6574096 7856096 13148192 15712192 26296384 31424384 52592768 157367423 314734846 629469692 1258939384 2517878768 5035757536 10071515072 20143030144