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80908966 = 273554171
BaseRepresentation
bin1001101001010…
…01001010100110
312122020121020101
410310221022212
5131203041331
612010054314
72001500125
oct464511246
9178217211
1080908966
1141742116
122311a39a
13139bb038
14aa61abc
157183061
hex4d292a6

80908966 has 8 divisors (see below), whose sum is σ = 123026184. Its totient is φ = 39900240.

The previous prime is 80908951. The next prime is 80908969. The reversal of 80908966 is 66980908.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80908969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276940 + ... + 277231.

It is an arithmetic number, because the mean of its divisors is an integer number (15378273).

Almost surely, 280908966 is an apocalyptic number.

80908966 is a deficient number, since it is larger than the sum of its proper divisors (42117218).

80908966 is a wasteful number, since it uses less digits than its factorization.

80908966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554246.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 80908966 is about 8994.9411337707. The cubic root of 80908966 is about 432.5127192847.

The spelling of 80908966 in words is "eighty million, nine hundred eight thousand, nine hundred sixty-six".

Divisors: 1 2 73 146 554171 1108342 40454483 80908966