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80539954 = 21113072801
BaseRepresentation
bin1001100110011…
…11000100110010
312121112212001021
410303033010302
5131104234304
611554130054
71665402235
oct463170462
9177485037
1080539954
114150a950
1222b8092a
13138bc0a1
14a9a741c
15710da54
hex4ccf132

80539954 has 16 divisors (see below), whose sum is σ = 131940576. Its totient is φ = 36568000.

The previous prime is 80539937. The next prime is 80539961. The reversal of 80539954 is 45993508.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80539954.

It is an unprimeable number.

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, 27354 + ... + 30154.

It is an arithmetic number, because the mean of its divisors is an integer number (8246286).

Almost surely, 280539954 is an apocalyptic number.

80539954 is a deficient number, since it is larger than the sum of its proper divisors (51400622).

80539954 is a wasteful number, since it uses less digits than its factorization.

80539954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 80539954 is about 8974.4054956303. The cubic root of 80539954 is about 431.8541781781.

The spelling of 80539954 in words is "eighty million, five hundred thirty-nine thousand, nine hundred fifty-four".

Divisors: 1 2 11 22 1307 2614 2801 5602 14377 28754 30811 61622 3660907 7321814 40269977 80539954