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8697667968 = 2732113791811
BaseRepresentation
bin10000001100110101…
…11110000110000000
3211110011012022102200
420012122332012000
5120303100333333
63555021113200
7425351646363
oct100632760600
924404168380
108697667968
113763674750
1218289b8800
13a87c46bc2
145c71d60da
1535d8abc13
hex2066be180

8697667968 has 192 divisors, whose sum is σ = 27390916800. Its totient is φ = 2627251200.

The previous prime is 8697667961. The next prime is 8697667987.

8697667968 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 8697667896 and 8697667905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8697667961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4801783 + ... + 4803593.

It is an arithmetic number, because the mean of its divisors is an integer number (142661025).

Almost surely, 28697667968 is an apocalyptic number.

8697667968 is a gapful number since it is divisible by the number (88) 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 8697667968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13695458400).

8697667968 is an abundant number, since it is smaller than the sum of its proper divisors (18693248832).

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

8697667968 is a wasteful number, since it uses less digits than its factorization.

8697667968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221 (or 2206 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 72.

The square root of 8697667968 is about 93261.2886893592. The cubic root of 8697667968 is about 2056.5263329715.

The spelling of 8697667968 in words is "eight billion, six hundred ninety-seven million, six hundred sixty-seven thousand, nine hundred sixty-eight".