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143418631920 = 24351973033389
BaseRepresentation
bin1000010110010001101…
…0101010011011110000
3111201012002110101010020
42011210122222123300
54322210132210140
6145515143003440
713235022154134
oct2054432523360
9451162411106
10143418631920
1155907095983
1223966739580
13106a7c0c615
146d276893c4
153ae5e096d0
hex21646aa6f0

143418631920 has 80 divisors (see below), whose sum is σ = 446854747680. Its totient is φ = 38050819072.

The previous prime is 143418631907. The next prime is 143418631949. The reversal of 143418631920 is 29136814341.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1469415 + ... + 1563974.

It is an arithmetic number, because the mean of its divisors is an integer number (5585684346).

Almost surely, 2143418631920 is an apocalyptic number.

143418631920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143418631920 is an abundant number, since it is smaller than the sum of its proper divisors (303436115760).

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

143418631920 is a wasteful number, since it uses less digits than its factorization.

143418631920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033602 (or 3033596 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 143418631920 in words is "one hundred forty-three billion, four hundred eighteen million, six hundred thirty-one thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 197 240 394 591 788 985 1182 1576 1970 2364 2955 3152 3940 4728 5910 7880 9456 11820 15760 23640 47280 3033389 6066778 9100167 12133556 15166945 18200334 24267112 30333890 36400668 45500835 48534224 60667780 72801336 91001670 121335560 145602672 182003340 242671120 364006680 597577633 728013360 1195155266 1792732899 2390310532 2987888165 3585465798 4780621064 5975776330 7170931596 8963664495 9561242128 11951552660 14341863192 17927328990 23903105320 28683726384 35854657980 47806210640 71709315960 143418631920