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80055200 = 2552100069
BaseRepresentation
bin1001100010110…
…00101110100000
312120122020002102
410301120232200
5130443231300
611535505532
71661313041
oct461305640
9176566072
1080055200
1141209725
12229882a8
131377c554
14a8bc8c8
1570650d5
hex4c58ba0

80055200 has 36 divisors (see below), whose sum is σ = 195436710. Its totient is φ = 32021760.

The previous prime is 80055197. The next prime is 80055211. The reversal of 80055200 is 255008.

It can be written as a sum of positive squares in 3 ways, for example, as 71031184 + 9024016 = 8428^2 + 3004^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49235 + ... + 50834.

Almost surely, 280055200 is an apocalyptic number.

80055200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80055200 is an abundant number, since it is smaller than the sum of its proper divisors (115381510).

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

80055200 is a wasteful number, since it uses less digits than its factorization.

80055200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100089 (or 100076 counting only the distinct ones).

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

The square root of 80055200 is about 8947.3571516957. The cubic root of 80055200 is about 430.9860192169.

The spelling of 80055200 in words is "eighty million, fifty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 100069 200138 400276 500345 800552 1000690 1601104 2001380 2501725 3202208 4002760 5003450 8005520 10006900 16011040 20013800 40027600 80055200