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69000069000069 = 32192352579333667
BaseRepresentation
bin11111011000001010101001…
…00110100010101110000101
3100001022100020110000220121200
433230011110212202232011
533020444120131000234
6402430105531533113
720351043014254254
oct1754052446425605
9301270213026550
1069000069000069
111aa92846138a89
1278a48135ba199
132c668a8b1980c
14130789a66079b
157e9cb435dd99
hex3ec1549a2b85

69000069000069 has 48 divisors (see below), whose sum is σ = 109476203865600. Its totient is φ = 41683334492448.

The previous prime is 69000069000067. The next prime is 69000069000133. The reversal of 69000069000069 is 96000096000096.

It is not a de Polignac number, because 69000069000069 - 21 = 69000069000067 is a prime.

It is a super-2 number, since 2×690000690000692 (a number of 28 digits) contains 22 as substring.

69000069000069 is a strobogrammatic number because it is the same when read upside-down.

69000069000069 is a modest number, since divided by 69000069 gives 69 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 69000068999988 and 69000069000033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69000069000067) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206626374 + ... + 206960040.

It is an arithmetic number, because the mean of its divisors is an integer number (2280754247200).

Almost surely, 269000069000069 is an apocalyptic number.

69000069000069 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

69000069000069 is a deficient number, since it is larger than the sum of its proper divisors (40476134865531).

69000069000069 is a wasteful number, since it uses less digits than its factorization.

69000069000069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386294 (or 386291 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The spelling of 69000069000069 in words is "sixty-nine trillion, sixty-nine million, sixty-nine", and thus it is an aban number and an uban number.

Divisors: 1 3 9 19 23 57 69 171 207 437 1311 3933 52579 157737 333667 473211 999001 1001001 1209317 2997003 3003003 3627951 6339673 7674341 8991009 10883853 19019019 22977023 23023023 57057057 68931069 69069069 145812479 206793207 437437437 1312312311 17543877193 52631631579 157894894737 333333666667 403509175439 1000001000001 1210527526317 3000003000003 3631582578951 7666674333341 23000023000023 69000069000069