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80363773 = 721640077
BaseRepresentation
bin1001100101001…
…00000011111101
312121012220101001
410302210003331
5131033120043
611550250301
71664036500
oct462440375
9177186331
1080363773
11413aa546
1222ab6991
1313859b39
14a95d137
1570c674d
hex4ca40fd

80363773 has 6 divisors (see below), whose sum is σ = 93484446. Its totient is φ = 68883192.

The previous prime is 80363761. The next prime is 80363783. The reversal of 80363773 is 37736308.

It can be written as a sum of positive squares in only one way, i.e., 76685049 + 3678724 = 8757^2 + 1918^2 .

It is not a de Polignac number, because 80363773 - 225 = 46809341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80363713) 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 in 5 ways as a sum of consecutive naturals, for example, 819990 + ... + 820087.

It is an arithmetic number, because the mean of its divisors is an integer number (15580741).

Almost surely, 280363773 is an apocalyptic number.

It is an amenable number.

80363773 is a deficient number, since it is larger than the sum of its proper divisors (13120673).

80363773 is a wasteful number, since it uses less digits than its factorization.

80363773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640091 (or 1640084 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 80363773 is about 8964.5843740800. The cubic root of 80363773 is about 431.5390548845.

The spelling of 80363773 in words is "eighty million, three hundred sixty-three thousand, seven hundred seventy-three".

Divisors: 1 7 49 1640077 11480539 80363773