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80240773 = 233521661
BaseRepresentation
bin1001100100001…
…10000010000101
312120222122122111
410302012002011
5131020201043
611543501021
71663015054
oct462060205
9176878574
1080240773
1141326098
1222a57771
1313815b62
14a92a39b
1570a009d
hex4c86085

80240773 has 8 divisors (see below), whose sum is σ = 80861976. Its totient is φ = 79622400.

The previous prime is 80240761. The next prime is 80240779. The reversal of 80240773 is 37704208.

It can be written as a sum of positive squares in 4 ways, for example, as 6160324 + 74080449 = 2482^2 + 8607^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80240773 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 (80240779) 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, 121063 + ... + 121723.

It is an arithmetic number, because the mean of its divisors is an integer number (10107747).

Almost surely, 280240773 is an apocalyptic number.

It is an amenable number.

80240773 is a deficient number, since it is larger than the sum of its proper divisors (621203).

80240773 is a wasteful number, since it uses less digits than its factorization.

80240773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 80240773 is about 8957.7214178607. The cubic root of 80240773 is about 431.3187798160.

The spelling of 80240773 in words is "eighty million, two hundred forty thousand, seven hundred seventy-three".

Divisors: 1 233 521 661 121393 154013 344381 80240773