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80397743 = 1716672837
BaseRepresentation
bin1001100101011…
…00010110101111
312121021121222012
410302230112233
5131040211433
611551111435
71664240516
oct462542657
9177247865
1080397743
1141423018
1222b1257b
131386c43a
14a96b67d
1570d1848
hex4cac5af

80397743 has 8 divisors (see below), whose sum is σ = 85208112. Its totient is φ = 75596416.

The previous prime is 80397697. The next prime is 80397749. The reversal of 80397743 is 34779308.

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

It is not a de Polignac number, because 80397743 - 224 = 63620527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80397743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80397749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26921 + ... + 29757.

It is an arithmetic number, because the mean of its divisors is an integer number (10651014).

Almost surely, 280397743 is an apocalyptic number.

80397743 is a deficient number, since it is larger than the sum of its proper divisors (4810369).

80397743 is a wasteful number, since it uses less digits than its factorization.

80397743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 80397743 is about 8966.4788518125. The cubic root of 80397743 is about 431.5998505893.

The spelling of 80397743 in words is "eighty million, three hundred ninety-seven thousand, seven hundred forty-three".

Divisors: 1 17 1667 2837 28339 48229 4729279 80397743