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80006172 = 2236667181
BaseRepresentation
bin1001100010011…
…00110000011100
312120112201211120
410301030300130
5130440144142
611534450540
71661020101
oct461146034
9176481746
1080006172
1141185904
1222963a50
131376313c
14a8a8aa8
1570557ec
hex4c4cc1c

80006172 has 12 divisors (see below), whose sum is σ = 186681096. Its totient is φ = 26668720.

The previous prime is 80006119. The next prime is 80006189. The reversal of 80006172 is 27160008.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3333579 + ... + 3333602.

It is an arithmetic number, because the mean of its divisors is an integer number (15556758).

Almost surely, 280006172 is an apocalyptic number.

It is an amenable number.

80006172 is an abundant number, since it is smaller than the sum of its proper divisors (106674924).

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

80006172 is a wasteful number, since it uses less digits than its factorization.

80006172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667188 (or 6667186 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 80006172 is about 8944.6169286337. The cubic root of 80006172 is about 430.8980186972.

The spelling of 80006172 in words is "eighty million, six thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 6667181 13334362 20001543 26668724 40003086 80006172