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69919168999680 = 283557311134583
BaseRepresentation
bin11111110010111010100110…
…01110110011000100000000
3100011120012121002211111200000
433321131103032303010000
533131023424230442210
6404412231154400000
720504331121332000
oct1771352316630400
9304505532744600
1069919168999680
112030760a125220
127a12978290000
133002470686930
14133a16a5b2000
15813b585c9ac0
hex3f97533b3100

69919168999680 has 3456 divisors, whose sum is σ = 343785389875200. Its totient is φ = 13408143114240.

The previous prime is 69919168999633. The next prime is 69919168999681. The reversal of 69919168999680 is 8699986191996.

69919168999680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a Harshad number since it is a multiple of its sum of digits (90).

It is not an unprimeable number, because it can be changed into a prime (69919168999681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 15256198669 + ... + 15256203251.

It is an arithmetic number, because the mean of its divisors is an integer number (99474939200).

Almost surely, 269919168999680 is an apocalyptic number.

69919168999680 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 69919168999680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171892694937600).

69919168999680 is an abundant number, since it is smaller than the sum of its proper divisors (273866220875520).

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

69919168999680 is a wasteful number, since it uses less digits than its factorization.

69919168999680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664 (or 4624 counting only the distinct ones).

The product of its (nonzero) digits is 7346640384, while the sum is 90.

The spelling of 69919168999680 in words is "sixty-nine trillion, nine hundred nineteen billion, one hundred sixty-eight million, nine hundred ninety-nine thousand, six hundred eighty".