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80185134 = 2326949681
BaseRepresentation
bin1001100011110…
…00011100101110
312120212211022210
410301320130232
5131011411014
611542351250
71662363621
oct461703456
9176784283
1080185134
1141298307
1222a2b526
13137c6733
14a913db8
15708d859
hex4c7872e

80185134 has 16 divisors (see below), whose sum is σ = 160969680. Its totient is φ = 26628480.

The previous prime is 80185123. The next prime is 80185159. The reversal of 80185134 is 43158108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23227 + ... + 26454.

It is an arithmetic number, because the mean of its divisors is an integer number (10060605).

Almost surely, 280185134 is an apocalyptic number.

80185134 is an abundant number, since it is smaller than the sum of its proper divisors (80784546).

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

80185134 is a wasteful number, since it uses less digits than its factorization.

80185134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49955.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 80185134 is about 8954.6152346151. The cubic root of 80185134 is about 431.2190645316.

The spelling of 80185134 in words is "eighty million, one hundred eighty-five thousand, one hundred thirty-four".

Divisors: 1 2 3 6 269 538 807 1614 49681 99362 149043 298086 13364189 26728378 40092567 80185134