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80196045 = 355990617
BaseRepresentation
bin1001100011110…
…11000111001101
312120220101021220
410301323013031
5131012233140
611542513553
71662440466
oct461730715
9176811256
1080196045
11412a5526
1222a358b9
13137cb6a7
14a917d6d
157091bd0
hex4c7b1cd

80196045 has 16 divisors (see below), whose sum is σ = 130489920. Its totient is φ = 42045824.

The previous prime is 80196043. The next prime is 80196047. The reversal of 80196045 is 54069108.

It is an interprime number because it is at equal distance from previous prime (80196043) and next prime (80196047).

It is a cyclic number.

It is not a de Polignac number, because 80196045 - 21 = 80196043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80195997 and 80196015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80196043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44424 + ... + 46193.

It is an arithmetic number, because the mean of its divisors is an integer number (8155620).

Almost surely, 280196045 is an apocalyptic number.

It is an amenable number.

80196045 is a deficient number, since it is larger than the sum of its proper divisors (50293875).

80196045 is a wasteful number, since it uses less digits than its factorization.

80196045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90684.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 80196045 is about 8955.2244527985. The cubic root of 80196045 is about 431.2386226782.

The spelling of 80196045 in words is "eighty million, one hundred ninety-six thousand, forty-five".

Divisors: 1 3 5 15 59 177 295 885 90617 271851 453085 1359255 5346403 16039209 26732015 80196045