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80747804 = 2220186951
BaseRepresentation
bin1001101000000…
…01110100011100
312121221102011102
410310001310130
5131132412204
612002412232
72000226224
oct464016434
9177842142
1080747804
1141642025
1223061078
1313962887
14aa1d084
15715041e
hex4d01d1c

80747804 has 6 divisors (see below), whose sum is σ = 141308664. Its totient is φ = 40373900.

The previous prime is 80747789. The next prime is 80747837. The reversal of 80747804 is 40874708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10093472 + ... + 10093479.

It is an arithmetic number, because the mean of its divisors is an integer number (23551444).

Almost surely, 280747804 is an apocalyptic number.

It is an amenable number.

80747804 is a deficient number, since it is larger than the sum of its proper divisors (60560860).

80747804 is a wasteful number, since it uses less digits than its factorization.

80747804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20186955 (or 20186953 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 80747804 is about 8985.9781882664. The cubic root of 80747804 is about 432.2253553868.

The spelling of 80747804 in words is "eighty million, seven hundred forty-seven thousand, eight hundred four".

Divisors: 1 2 4 20186951 40373902 80747804