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69997464642688 = 2711233185316007
BaseRepresentation
bin11111110101001100011100…
…00000111110010010000000
3100011211200200122220021101221
433322212032000332102000
533133314301422031223
6404512220310004424
720513102266323532
oct1772461600762200
9304750618807357
1069997464642688
1120337837a62700
127a25b89346714
13300996a677c8b
14133dc76c4d852
15815bdc133b5d
hex3fa98e03e480

69997464642688 has 192 divisors, whose sum is σ = 153930560736960. Its totient is φ = 31681738598400.

The previous prime is 69997464642659. The next prime is 69997464642727. The reversal of 69997464642688 is 88624646479996.

69997464642688 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (88).

It is a junction number, because it is equal to n+sod(n) for n = 69997464642599 and 69997464642608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4372920381 + ... + 4372936387.

It is an arithmetic number, because the mean of its divisors is an integer number (801721670505).

Almost surely, 269997464642688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69997464642688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76965280368480).

69997464642688 is an abundant number, since it is smaller than the sum of its proper divisors (83933096094272).

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

69997464642688 is a wasteful number, since it uses less digits than its factorization.

69997464642688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17227 (or 17204 counting only the distinct ones).

The product of its digits is 54177693696, while the sum is 88.

The spelling of 69997464642688 in words is "sixty-nine trillion, nine hundred ninety-seven billion, four hundred sixty-four million, six hundred forty-two thousand, six hundred eighty-eight".