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60685355873 = 283321420881
BaseRepresentation
bin111000100001001000…
…010000101101100001
312210122021012111021002
4320201020100231201
51443240422341443
643513425441345
74245561004532
oct704110205541
9183567174232
1060685355873
112381133507a
12b9174a0255
13595173cbcc
142d198d8689
1518a29d12b8
hexe21210b61

60685355873 has 4 divisors (see below), whose sum is σ = 60706779588. Its totient is φ = 60663932160.

The previous prime is 60685355851. The next prime is 60685355947. The reversal of 60685355873 is 37855358606.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14480993569 + 46204362304 = 120337^2 + 214952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-60685355873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60685355573) 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 3 ways as a sum of consecutive naturals, for example, 10707608 + ... + 10713273.

It is an arithmetic number, because the mean of its divisors is an integer number (15176694897).

Almost surely, 260685355873 is an apocalyptic number.

It is an amenable number.

60685355873 is a deficient number, since it is larger than the sum of its proper divisors (21423715).

60685355873 is a wasteful number, since it uses less digits than its factorization.

60685355873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21423714.

The product of its (nonzero) digits is 18144000, while the sum is 56.

The spelling of 60685355873 in words is "sixty billion, six hundred eighty-five million, three hundred fifty-five thousand, eight hundred seventy-three".

Divisors: 1 2833 21420881 60685355873