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61346208001 = 136193782561
BaseRepresentation
bin111001001000100001…
…001101100100000001
312212100022201020221211
4321020201031210001
52001114112124001
644103154050121
74301134110241
oct711041154401
9185308636854
1061346208001
1124020376061
12ba80879941
135a28623580
142d7d5a1b21
1518e0a1e351
hexe4884d901

61346208001 has 16 divisors (see below), whose sum is σ = 67220659408. Its totient is φ = 55638835200.

The previous prime is 61346207947. The next prime is 61346208013. The reversal of 61346208001 is 10080264316.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 19099516401 + 42246691600 = 138201^2 + 205540^2 .

It is not a de Polignac number, because 61346208001 - 213 = 61346199809 is a prime.

It is a super-2 number, since 2×613462080012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61346208401) 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 15 ways as a sum of consecutive naturals, for example, 701761 + ... + 784321.

It is an arithmetic number, because the mean of its divisors is an integer number (4201291213).

Almost surely, 261346208001 is an apocalyptic number.

61346208001 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

61346208001 is a deficient number, since it is larger than the sum of its proper divisors (5874451407).

61346208001 is a wasteful number, since it uses less digits than its factorization.

61346208001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83572.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 61346208001 in words is "sixty-one billion, three hundred forty-six million, two hundred eight thousand, one".

Divisors: 1 13 61 793 937 12181 57157 82561 743041 1073293 5036221 65470873 77359657 1005675541 4718939077 61346208001