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80723696 = 248116221
BaseRepresentation
bin1001100111110…
…11111011110000
312121220012002112
410303323323300
5131131124241
612002104452
72000066024
oct463737360
9177805075
1080723696
11416259a9
122304b128
1313954901
14aa14384
1571481eb
hex4cfbef0

80723696 has 20 divisors (see below), whose sum is σ = 156620184. Its totient is φ = 40305600.

The previous prime is 80723693. The next prime is 80723707. The reversal of 80723696 is 69632708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80723693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9866 + ... + 16086.

Almost surely, 280723696 is an apocalyptic number.

It is an amenable number.

80723696 is a deficient number, since it is larger than the sum of its proper divisors (75896488).

80723696 is a wasteful number, since it uses less digits than its factorization.

80723696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040 (or 7034 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 80723696 is about 8984.6366648852. The cubic root of 80723696 is about 432.1823361527.

The spelling of 80723696 in words is "eighty million, seven hundred twenty-three thousand, six hundred ninety-six".

Divisors: 1 2 4 8 16 811 1622 3244 6221 6488 12442 12976 24884 49768 99536 5045231 10090462 20180924 40361848 80723696