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69000000000000 = 212351223
BaseRepresentation
bin11111011000001010100000…
…11111010101000000000000
3100001022100001122012100022120
433230011100133111000000
533020444000000000000
6402430055025004240
720351041215624006
oct1754052037250000
9301270048170276
1069000000000000
111aa928101a0233
1278a47b4483680
132c6689773b184
14130789141ca76
157e9cad27e6a0
hex3ec1507d5000

69000000000000 has 676 divisors, whose sum is σ = 239970702928416. Its totient is φ = 17600000000000.

The previous prime is 68999999999989. The next prime is 69000000000031. The reversal of 69000000000000 is 96.

It is a super-2 number, since 2×690000000000002 (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (15) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 69000000000000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 51 ways as a sum of consecutive naturals, for example, 2999999999989 + ... + 3000000000011.

Almost surely, 269000000000000 is an apocalyptic number.

69000000000000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69000000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119985351464208).

69000000000000 is an abundant number, since it is smaller than the sum of its proper divisors (170970702928416).

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

69000000000000 is an frugal number, since it uses more digits than its factorization.

69000000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 69000000000000 its reverse (96), we get a palindrome (69000000000096).

The spelling of 69000000000000 in words is "sixty-nine trillion", and thus it is an aban number and an uban number.