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80555684 = 22114342577
BaseRepresentation
bin1001100110100…
…10111010100100
312121120122121212
410303102322210
5131110240214
611554330552
71665466136
oct463227244
9177518555
1080555684
1141520750
1222b89a58
13138c62b1
14a9ad056
15711353e
hex4cd2ea4

80555684 has 24 divisors (see below), whose sum is σ = 157368288. Its totient is φ = 35763840.

The previous prime is 80555669. The next prime is 80555711. The reversal of 80555684 is 48655508.

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, 19397 + ... + 23180.

It is an arithmetic number, because the mean of its divisors is an integer number (6557012).

Almost surely, 280555684 is an apocalyptic number.

It is an amenable number.

80555684 is a deficient number, since it is larger than the sum of its proper divisors (76812604).

80555684 is a wasteful number, since it uses less digits than its factorization.

80555684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42635 (or 42633 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 80555684 is about 8975.2818340150. The cubic root of 80555684 is about 431.8822910326.

The spelling of 80555684 in words is "eighty million, five hundred fifty-five thousand, six hundred eighty-four".

Divisors: 1 2 4 11 22 43 44 86 172 473 946 1892 42577 85154 170308 468347 936694 1830811 1873388 3661622 7323244 20138921 40277842 80555684