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80198634 = 2313366439
BaseRepresentation
bin1001100011110…
…11101111101010
312120220111211210
410301323233222
5131012324014
611542533550
71662451155
oct461735752
9176814753
1080198634
11412a746a
1222a372b6
13137cc919
14a918c9c
157092859
hex4c7bbea

80198634 has 8 divisors (see below), whose sum is σ = 160397280. Its totient is φ = 26732876.

The previous prime is 80198627. The next prime is 80198653. The reversal of 80198634 is 43689108.

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

80198634 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80198592 and 80198601.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6683214 + ... + 6683225.

It is an arithmetic number, because the mean of its divisors is an integer number (20049660).

Almost surely, 280198634 is an apocalyptic number.

80198634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80198634 is a wasteful number, since it uses less digits than its factorization.

80198634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13366444.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 80198634 is about 8955.3690041226. The cubic root of 80198634 is about 431.2432632428.

It can be divided in two parts, 8019 and 8634, that added together give a triangular number (16653 = T182).

The spelling of 80198634 in words is "eighty million, one hundred ninety-eight thousand, six hundred thirty-four".

Divisors: 1 2 3 6 13366439 26732878 40099317 80198634