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80450061 = 365940693
BaseRepresentation
bin1001100101110…
…01001000001101
312121101021201220
410302321020031
5131043400221
611552153553
71664546166
oct462711015
9177337656
1080450061
114145935a
1222b388b9
131388a1b3
14a98276d
1570e20c6
hex4cb920d

80450061 has 8 divisors (see below), whose sum is σ = 107432160. Its totient is φ = 53550672.

The previous prime is 80450057. The next prime is 80450063. The reversal of 80450061 is 16005408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80450061 - 22 = 80450057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80450063) 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, 18370 + ... + 22323.

It is an arithmetic number, because the mean of its divisors is an integer number (13429020).

Almost surely, 280450061 is an apocalyptic number.

It is an amenable number.

80450061 is a deficient number, since it is larger than the sum of its proper divisors (26982099).

80450061 is a wasteful number, since it uses less digits than its factorization.

80450061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41355.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 80450061 is about 8969.3957990491. The cubic root of 80450061 is about 431.6934500027.

Adding to 80450061 its reverse (16005408), we get a palindrome (96455469).

The spelling of 80450061 in words is "eighty million, four hundred fifty thousand, sixty-one".

Divisors: 1 3 659 1977 40693 122079 26816687 80450061