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80072143000 = 235389899687
BaseRepresentation
bin100101010010010101…
…0111111000010011000
321122200100212022120221
41022210222333002120
52302441432034000
6100441251525424
75533155662023
oct1124452770230
9248610768527
1080072143000
1130a5a7011a3
1213627bb9874
137721073b95
143c385981ba
1521399be61a
hex12a4abf098

80072143000 has 64 divisors (see below), whose sum is σ = 189474292800. Its totient is φ = 31668947200.

The previous prime is 80072142949. The next prime is 80072143009. The reversal of 80072143000 is 34127008.

It is a super-2 number, since 2×800721430002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80072143009) 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 15 ways as a sum of consecutive naturals, for example, 360844 + ... + 538843.

It is an arithmetic number, because the mean of its divisors is an integer number (2960535825).

Almost surely, 280072143000 is an apocalyptic number.

It is an amenable number.

80072143000 is an abundant number, since it is smaller than the sum of its proper divisors (109402149800).

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

80072143000 is a wasteful number, since it uses less digits than its factorization.

80072143000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899797 (or 899783 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The spelling of 80072143000 in words is "eighty billion, seventy-two million, one hundred forty-three thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 89 100 125 178 200 250 356 445 500 712 890 1000 1780 2225 3560 4450 8900 11125 17800 22250 44500 89000 899687 1799374 3598748 4498435 7197496 8996870 17993740 22492175 35987480 44984350 80072143 89968700 112460875 160144286 179937400 224921750 320288572 400360715 449843500 640577144 800721430 899687000 1601442860 2001803575 3202885720 4003607150 8007214300 10009017875 16014428600 20018035750 40036071500 80072143000