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80342756 = 22134013853
BaseRepresentation
bin1001100100111…
…10111011100100
312121011211112122
410302132323210
5131031432011
611550005112
71663621304
oct462367344
9177154478
1080342756
114139577a
1222aa6798
13138503c0
14a955604
1570c03db
hex4c9eee4

80342756 has 24 divisors (see below), whose sum is σ = 151832184. Its totient is φ = 36979200.

The previous prime is 80342747. The next prime is 80342761. The reversal of 80342756 is 65724308.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48080356 + 32262400 = 6934^2 + 5680^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18926 + ... + 22778.

It is an arithmetic number, because the mean of its divisors is an integer number (6326341).

Almost surely, 280342756 is an apocalyptic number.

It is an amenable number.

80342756 is a deficient number, since it is larger than the sum of its proper divisors (71489428).

80342756 is a wasteful number, since it uses less digits than its factorization.

80342756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271 (or 4269 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 80342756 is about 8963.4120735354. The cubic root of 80342756 is about 431.5014324304.

The spelling of 80342756 in words is "eighty million, three hundred forty-two thousand, seven hundred fifty-six".

Divisors: 1 2 4 13 26 52 401 802 1604 3853 5213 7706 10426 15412 20852 50089 100178 200356 1545053 3090106 6180212 20085689 40171378 80342756