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80704028 = 2233076101
BaseRepresentation
bin1001100111101…
…11001000011100
312121212012010002
410303313020130
5131130012103
612001433432
71666654466
oct463671034
9177765102
1080704028
1141612149
122303b878
1313948982
14aa0b136
157142488
hex4cf721c

80704028 has 12 divisors (see below), whose sum is σ = 141297912. Its totient is φ = 40333200.

The previous prime is 80704007. The next prime is 80704051. The reversal of 80704028 is 82040708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10178 + ... + 16278.

It is an arithmetic number, because the mean of its divisors is an integer number (11774826).

Almost surely, 280704028 is an apocalyptic number.

It is an amenable number.

80704028 is a deficient number, since it is larger than the sum of its proper divisors (60593884).

80704028 is a wasteful number, since it uses less digits than its factorization.

80704028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9412 (or 9410 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 80704028 is about 8983.5420631286. The cubic root of 80704028 is about 432.1472334793.

The spelling of 80704028 in words is "eighty million, seven hundred four thousand, twenty-eight".

Divisors: 1 2 4 3307 6101 6614 12202 13228 24404 20176007 40352014 80704028