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78080255 = 5111419641
BaseRepresentation
bin1001010011101…
…10100011111111
312102220212222022
410221312203333
5124442032010
611425310355
71635446141
oct451664377
9172825868
1078080255
114008a940
12221953bb
131323a646
14a526c91
156cc4d55
hex4a768ff

78080255 has 8 divisors (see below), whose sum is σ = 102214224. Its totient is φ = 56785600.

The previous prime is 78080213. The next prime is 78080257. The reversal of 78080255 is 55208087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78080255 - 216 = 78014719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78080257) 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 7 ways as a sum of consecutive naturals, for example, 709766 + ... + 709875.

It is an arithmetic number, because the mean of its divisors is an integer number (12776778).

Almost surely, 278080255 is an apocalyptic number.

78080255 is a deficient number, since it is larger than the sum of its proper divisors (24133969).

78080255 is a wasteful number, since it uses less digits than its factorization.

78080255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419657.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 78080255 is about 8836.3032428726. The cubic root of 78080255 is about 427.4123573512.

The spelling of 78080255 in words is "seventy-eight million, eighty thousand, two hundred fifty-five".

Divisors: 1 5 11 55 1419641 7098205 15616051 78080255