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80394898 = 240197449
BaseRepresentation
bin1001100101010…
…11101010010010
312121021111001211
410302223222102
5131040114043
611551050334
71664226313
oct462535222
9177244054
1080394898
1141420971
1222b109aa
131386b05c
14a96a60a
1570d0a9d
hex4caba92

80394898 has 4 divisors (see below), whose sum is σ = 120592350. Its totient is φ = 40197448.

The previous prime is 80394893. The next prime is 80394901. The reversal of 80394898 is 89849308.

It is a happy number.

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., 40742689 + 39652209 = 6383^2 + 6297^2 .

It is not an unprimeable number, because it can be changed into a prime (80394893) by changing a digit.

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, 20098723 + ... + 20098726.

Almost surely, 280394898 is an apocalyptic number.

80394898 is a deficient number, since it is larger than the sum of its proper divisors (40197452).

80394898 is a wasteful number, since it uses less digits than its factorization.

80394898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40197451.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 80394898 is about 8966.3202039633. The cubic root of 80394898 is about 431.5947595838.

The spelling of 80394898 in words is "eighty million, three hundred ninety-four thousand, eight hundred ninety-eight".

Divisors: 1 2 40197449 80394898