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80967986730 = 2325899644297
BaseRepresentation
bin100101101101000010…
…0010110111000101010
321201222210112220011100
41023122010112320222
52311310301033410
6101110212542230
75564314350231
oct1133204267052
9251883486140
1080967986730
113137a354914
1213838021976
137834843827
143cc1551b18
15218d4798c0
hex12da116e2a

80967986730 has 24 divisors (see below), whose sum is σ = 210516765732. Its totient is φ = 21591463104.

The previous prime is 80967986707. The next prime is 80967986741. The reversal of 80967986730 is 3768976908.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78813263169 + 2154723561 = 280737^2 + 46419^2 .

It is a super-3 number, since 3×809679867303 (a number of 34 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 449822059 + ... + 449822238.

Almost surely, 280967986730 is an apocalyptic number.

80967986730 is an abundant number, since it is smaller than the sum of its proper divisors (129548779002).

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

80967986730 is a wasteful number, since it uses less digits than its factorization.

80967986730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899644310 (or 899644307 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 80967986730 in words is "eighty billion, nine hundred sixty-seven million, nine hundred eighty-six thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 899644297 1799288594 2698932891 4498221485 5397865782 8096798673 8996442970 13494664455 16193597346 26989328910 40483993365 80967986730