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80530828 = 22711872423
BaseRepresentation
bin1001100110011…
…00110110001100
312121112101112021
410303030312030
5131103441303
611554015524
71665333520
oct463146614
9177471467
1080530828
1141504004
1222b775a4
13138b7ba1
14a9a3d80
15710aebd
hex4cccd8c

80530828 has 24 divisors (see below), whose sum is σ = 161263872. Its totient is φ = 34469904.

The previous prime is 80530817. The next prime is 80530829. The reversal of 80530828 is 82803508.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80530793 and 80530802.

It is not an unprimeable number, because it can be changed into a prime (80530829) 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, 32025 + ... + 34447.

It is an arithmetic number, because the mean of its divisors is an integer number (6719328).

Almost surely, 280530828 is an apocalyptic number.

It is an amenable number.

80530828 is an abundant number, since it is smaller than the sum of its proper divisors (80733044).

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

80530828 is a wasteful number, since it uses less digits than its factorization.

80530828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 80530828 is about 8973.8970352907. The cubic root of 80530828 is about 431.8378663979.

The spelling of 80530828 in words is "eighty million, five hundred thirty thousand, eight hundred twenty-eight".

Divisors: 1 2 4 7 14 28 1187 2374 2423 4748 4846 8309 9692 16618 16961 33236 33922 67844 2876101 5752202 11504404 20132707 40265414 80530828