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80988310 = 2513622987
BaseRepresentation
bin1001101001111…
…00100010010110
312122101122002001
410310330202112
5131213111220
612011505514
72002250344
oct464744226
9178348061
1080988310
1141796797
122315829a
1313a181a0
14aa82994
15719b80a
hex4d3c896

80988310 has 16 divisors (see below), whose sum is σ = 156992976. Its totient is φ = 29903328.

The previous prime is 80988263. The next prime is 80988311. The reversal of 80988310 is 1388908.

It is a super-2 number, since 2×809883102 = 13118212713312200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80988310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80988311) 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, 311364 + ... + 311623.

It is an arithmetic number, because the mean of its divisors is an integer number (9812061).

Almost surely, 280988310 is an apocalyptic number.

80988310 is a deficient number, since it is larger than the sum of its proper divisors (76004666).

80988310 is a wasteful number, since it uses less digits than its factorization.

80988310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623007.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 80988310 is about 8999.3505321217. The cubic root of 80988310 is about 432.6540554026.

The spelling of 80988310 in words is "eighty million, nine hundred eighty-eight thousand, three hundred ten".

Divisors: 1 2 5 10 13 26 65 130 622987 1245974 3114935 6229870 8098831 16197662 40494155 80988310