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67007740106772 = 22322600817156717
BaseRepresentation
bin11110011110001011101001…
…00010111101100000010100
322210020212200121201122202200
433033011310202331200110
532240323322431404042
6354302533021204500
720054102160140613
oct1717056442754024
9283225617648680
1067007740106772
111a394906447203
127622670700730
132b50a5892244a
14127929890387a
157b3059a61c4c
hex3cf1748bd814

67007740106772 has 36 divisors (see below), whose sum is σ = 169381351309716. Its totient is φ = 22335824367360.

The previous prime is 67007740106771. The next prime is 67007740106851. The reversal of 67007740106772 is 27760104770076.

It is a happy number.

67007740106772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37411376522256 + 29596363584516 = 6116484^2 + 5440254^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67007740106771) 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 11 ways as a sum of consecutive naturals, for example, 5784558 + ... + 12941274.

It is an arithmetic number, because the mean of its divisors is an integer number (4705037536381).

Almost surely, 267007740106772 is an apocalyptic number.

It is an amenable number.

67007740106772 is an abundant number, since it is smaller than the sum of its proper divisors (102373611202944).

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

67007740106772 is a wasteful number, since it uses less digits than its factorization.

67007740106772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7416808 (or 7416803 counting only the distinct ones).

The product of its (nonzero) digits is 4840416, while the sum is 54.

The spelling of 67007740106772 in words is "sixty-seven trillion, seven billion, seven hundred forty million, one hundred six thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 260081 520162 780243 1040324 1560486 2340729 3120972 4681458 7156717 9362916 14313434 21470151 28626868 42940302 64410453 85880604 128820906 257641812 1861326114077 3722652228154 5583978342231 7445304456308 11167956684462 16751935026693 22335913368924 33503870053386 67007740106772