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80004072 = 23328111863
BaseRepresentation
bin1001100010011…
…00001111101000
312120112121221210
410301030033220
5130440112242
611534433120
71661011011
oct461141750
9176477853
1080004072
1141184275
12229627a0
13137621b5
14a8a8008
157054d9c
hex4c4c3e8

80004072 has 32 divisors (see below), whose sum is σ = 200738880. Its totient is φ = 26570880.

The previous prime is 80004053. The next prime is 80004073. The reversal of 80004072 is 27040008.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80004073) 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, 813 + ... + 12675.

It is an arithmetic number, because the mean of its divisors is an integer number (6273090).

Almost surely, 280004072 is an apocalyptic number.

It is an amenable number.

80004072 is an abundant number, since it is smaller than the sum of its proper divisors (120734808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80004072 is a wasteful number, since it uses less digits than its factorization.

80004072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12153 (or 12149 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 80004072 is about 8944.4995388227. The cubic root of 80004072 is about 430.8942485974.

The spelling of 80004072 in words is "eighty million, four thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 281 562 843 1124 1686 2248 3372 6744 11863 23726 35589 47452 71178 94904 142356 284712 3333503 6667006 10000509 13334012 20001018 26668024 40002036 80004072