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80055200000 = 2855100069
BaseRepresentation
bin100101010001110101…
…0010110100100000000
321122122011222112011102
41022203222112210000
52302423112400000
6100435444433532
75532561654356
oct1124352264400
9248564875142
1080055200000
1130a51089716
12136223a88a8
13771a6c1039
143c362277d6
1521382743d5
hex12a3a96900

80055200000 has 108 divisors (see below), whose sum is σ = 199736317620. Its totient is φ = 32021760000.

The previous prime is 80055199997. The next prime is 80055200003. The reversal of 80055200000 is 255008.

It is an interprime number because it is at equal distance from previous prime (80055199997) and next prime (80055200003).

It can be written as a sum of positive squares in 6 ways, for example, as 52811716864 + 27243483136 = 229808^2 + 165056^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (80055200003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 749966 + ... + 850034.

Almost surely, 280055200000 is an apocalyptic number.

80055200000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80055200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99868158810).

80055200000 is an abundant number, since it is smaller than the sum of its proper divisors (119681117620).

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

80055200000 is an frugal number, since it uses more digits than its factorization.

80055200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100110 (or 100076 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 80055200000 its reverse (255008), we get a palindrome (80055455008).

The spelling of 80055200000 in words is "eighty billion, fifty-five million, two hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 625 640 800 1000 1250 1280 1600 2000 2500 3125 3200 4000 5000 6250 6400 8000 10000 12500 16000 20000 25000 32000 40000 50000 80000 100000 100069 160000 200000 200138 400000 400276 500345 800000 800552 1000690 1601104 2001380 2501725 3202208 4002760 5003450 6404416 8005520 10006900 12508625 12808832 16011040 20013800 25017250 25617664 32022080 40027600 50034500 62543125 64044160 80055200 100069000 125086250 128088320 160110400 200138000 250172500 312715625 320220800 400276000 500345000 625431250 640441600 800552000 1000690000 1250862500 1601104000 2001380000 2501725000 3202208000 4002760000 5003450000 8005520000 10006900000 16011040000 20013800000 40027600000 80055200000