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143085507920 = 2452377763863
BaseRepresentation
bin1000010101000010001…
…1111001010101010000
3111200022212121220220022
42011100203321111100
54321014342223140
6145422123003012
713223535515135
oct2052043712520
9450285556808
10143085507920
1155756047993
1223893069468
1310653bb4924
146cd533258c
153ac6a560b5
hex21508f9550

143085507920 has 40 divisors (see below), whose sum is σ = 347137888896. Its totient is φ = 54745758848.

The previous prime is 143085507907. The next prime is 143085507931. The reversal of 143085507920 is 29705580341.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38880092 + ... + 38883771.

Almost surely, 2143085507920 is an apocalyptic number.

143085507920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143085507920 is an abundant number, since it is smaller than the sum of its proper divisors (204052380976).

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

143085507920 is a wasteful number, since it uses less digits than its factorization.

143085507920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77763899 (or 77763893 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 143085507920 in words is "one hundred forty-three billion, eighty-five million, five hundred seven thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 77763863 155527726 311055452 388819315 622110904 777638630 1244221808 1555277260 1788568849 3110554520 3577137698 6221109040 7154275396 8942844245 14308550792 17885688490 28617101584 35771376980 71542753960 143085507920