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80066140 = 22571151991
BaseRepresentation
bin1001100010110…
…11011001011100
312120122210002121
410301123121130
5130444104030
611540032324
71661356660
oct461333134
9176583077
1080066140
1141216970
12229926a4
131378451b
14a8c28a0
15706847a
hex4c5b65c

80066140 has 48 divisors (see below), whose sum is σ = 209631744. Its totient is φ = 24955200.

The previous prime is 80066111. The next prime is 80066167. The reversal of 80066140 is 4166008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24456 + ... + 27535.

It is an arithmetic number, because the mean of its divisors is an integer number (4367328).

Almost surely, 280066140 is an apocalyptic number.

It is an amenable number.

80066140 is an abundant number, since it is smaller than the sum of its proper divisors (129565604).

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

80066140 is a wasteful number, since it uses less digits than its factorization.

80066140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52018 (or 52016 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 80066140 is about 8947.9684845221. The cubic root of 80066140 is about 431.0056505559.

The spelling of 80066140 in words is "eighty million, sixty-six thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 51991 103982 207964 259955 363937 519910 571901 727874 1039820 1143802 1455748 1819685 2287604 2859505 3639370 4003307 5719010 7278740 8006614 11438020 16013228 20016535 40033070 80066140