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70086665088 = 2732117177899
BaseRepresentation
bin100000101000101111…
…1011010001110000000
320200220110102111000200
41001101133122032000
52122014141240323
652110344245200
75030545552356
oct1012137321600
9220813374020
1070086665088
11277a6105910
12116bba70800
1367bc39c67b
14356c3357d6
151c5302e443
hex10517da380

70086665088 has 192 divisors, whose sum is σ = 223118064000. Its totient is φ = 20938982400.

The previous prime is 70086665087. The next prime is 70086665113. The reversal of 70086665088 is 88056668007.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70086665087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 860763 + ... + 938661.

It is an arithmetic number, because the mean of its divisors is an integer number (1162073250).

Almost surely, 270086665088 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 70086665088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111559032000).

70086665088 is an abundant number, since it is smaller than the sum of its proper divisors (153031398912).

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

70086665088 is a wasteful number, since it uses less digits than its factorization.

70086665088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78001 (or 77986 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 70086665088 in words is "seventy billion, eighty-six million, six hundred sixty-five thousand, eighty-eight".