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80612756090 = 2529733807877
BaseRepresentation
bin100101100010011100…
…1010000101001111010
321201002001010022022222
41023010321100221322
52310043331143330
6101011043044042
75552442056336
oct1130471205172
9251061108288
1080612756090
1131207887879
1213759070622
1377a9078899
143c8a2c27c6
15216c1ab0e5
hex12c4e50a7a

80612756090 has 32 divisors (see below), whose sum is σ = 152162804880. Its totient is φ = 30706712064.

The previous prime is 80612756089. The next prime is 80612756113. The reversal of 80612756090 is 9065721608.

It can be written as a sum of positive squares in 8 ways, for example, as 54915704281 + 25697051809 = 234341^2 + 160303^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882769 + ... + 1925108.

Almost surely, 280612756090 is an apocalyptic number.

80612756090 is a deficient number, since it is larger than the sum of its proper divisors (71550048790).

80612756090 is a wasteful number, since it uses less digits than its factorization.

80612756090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807986.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 80612756090 in words is "eighty billion, six hundred twelve million, seven hundred fifty-six thousand, ninety".

Divisors: 1 2 5 10 29 58 73 145 146 290 365 730 2117 4234 10585 21170 3807877 7615754 19039385 38078770 110428433 220856866 277975021 552142165 555950042 1104284330 1389875105 2779750210 8061275609 16122551218 40306378045 80612756090