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80654946 = 2385915649
BaseRepresentation
bin1001100111010…
…11001001100010
312121202200210020
410303223021202
5131121424241
612000414310
71666361421
oct463531142
9177680706
1080654946
1141589289
1223017396
131392c528
14a9d72b8
157132b66
hex4ceb262

80654946 has 16 divisors (see below), whose sum is σ = 161508000. Its totient is φ = 26851968.

The previous prime is 80654941. The next prime is 80654969. The reversal of 80654946 is 64945608.

It is a junction number, because it is equal to n+sod(n) for n = 80654898 and 80654907.

It is not an unprimeable number, because it can be changed into a prime (80654941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (10094250).

Almost surely, 280654946 is an apocalyptic number.

80654946 is an abundant number, since it is smaller than the sum of its proper divisors (80853054).

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

80654946 is a wasteful number, since it uses less digits than its factorization.

80654946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16513.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 80654946 is about 8980.8098743933. The cubic root of 80654946 is about 432.0596089728.

The spelling of 80654946 in words is "eighty million, six hundred fifty-four thousand, nine hundred forty-six".

Divisors: 1 2 3 6 859 1718 2577 5154 15649 31298 46947 93894 13442491 26884982 40327473 80654946