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80530716 = 22372151907
BaseRepresentation
bin1001100110011…
…00110100011100
312121112101101010
410303030310130
5131103440331
611554015220
71665333300
oct463146434
9177471333
1080530716
1141503a12
1222b77510
13138b7b16
14a9a3d00
15710ae46
hex4cccd1c

80530716 has 72 divisors (see below), whose sum is σ = 220273536. Its totient is φ = 22831200.

The previous prime is 80530711. The next prime is 80530733. The reversal of 80530716 is 61703508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80530711) 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 23 ways as a sum of consecutive naturals, for example, 88335 + ... + 89241.

Almost surely, 280530716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80530716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110136768).

80530716 is an abundant number, since it is smaller than the sum of its proper divisors (139742820).

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

80530716 is a wasteful number, since it uses less digits than its factorization.

80530716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 80530716 is about 8973.8907949674. The cubic root of 80530716 is about 431.8376662018.

The spelling of 80530716 in words is "eighty million, five hundred thirty thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 151 196 294 302 453 588 604 906 907 1057 1812 1814 2114 2721 3171 3628 4228 5442 6342 6349 7399 10884 12684 12698 14798 19047 22197 25396 29596 38094 44394 44443 76188 88788 88886 133329 136957 177772 266658 273914 410871 533316 547828 821742 958699 1643484 1917398 2876097 3834796 5752194 6710893 11504388 13421786 20132679 26843572 40265358 80530716