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80628927 = 389311971
BaseRepresentation
bin1001100111001…
…00110010111111
312121201101002120
410303210302333
5131120111202
612000054023
71666222521
oct463446277
9177641076
1080628927
1141570785
1223004313
1313920732
14a9cba11
15712a0bc
hex4ce4cbf

80628927 has 16 divisors (see below), whose sum is σ = 109175040. Its totient is φ = 52923200.

The previous prime is 80628917. The next prime is 80628929. The reversal of 80628927 is 72982608.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80628927 - 219 = 80104639 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80628929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82552 + ... + 83522.

It is an arithmetic number, because the mean of its divisors is an integer number (6823440).

Almost surely, 280628927 is an apocalyptic number.

80628927 is a deficient number, since it is larger than the sum of its proper divisors (28546113).

80628927 is a wasteful number, since it uses less digits than its factorization.

80628927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 80628927 is about 8979.3611688137. The cubic root of 80628927 is about 432.0131436759.

The spelling of 80628927 in words is "eighty million, six hundred twenty-eight thousand, nine hundred twenty-seven".

Divisors: 1 3 89 267 311 933 971 2913 27679 83037 86419 259257 301981 905943 26876309 80628927