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80198914 = 240099457
BaseRepresentation
bin1001100011110…
…11110100000010
312120220112020011
410301323310002
5131012331124
611542535134
71662452035
oct461736402
9176815204
1080198914
11412a76a4
1222a374aa
13137ccaa3
14a91901c
157092994
hex4c7bd02

80198914 has 4 divisors (see below), whose sum is σ = 120298374. Its totient is φ = 40099456.

The previous prime is 80198903. The next prime is 80198929. The reversal of 80198914 is 41989108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80192025 + 6889 = 8955^2 + 83^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20049727 + ... + 20049730.

Almost surely, 280198914 is an apocalyptic number.

80198914 is a deficient number, since it is larger than the sum of its proper divisors (40099460).

80198914 is a wasteful number, since it uses less digits than its factorization.

80198914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40099459.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 80198914 is about 8955.3846371890. The cubic root of 80198914 is about 431.2437651132.

The spelling of 80198914 in words is "eighty million, one hundred ninety-eight thousand, nine hundred fourteen".

Divisors: 1 2 40099457 80198914