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68102837 = 1113745191
BaseRepresentation
bin1000000111100…
…10101010110101
311202010222112022
410003302222311
5114413242322
610431402525
71454602355
oct403625265
9152128468
1068102837
1135495740
121a983445
131115614a
14908ab65
155ea3942
hex40f2ab5

68102837 has 8 divisors (see below), whose sum is σ = 74837952. Its totient is φ = 61458400.

The previous prime is 68102831. The next prime is 68102849. The reversal of 68102837 is 73820186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68102837 - 26 = 68102773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68102797 and 68102806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68102831) 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 7 ways as a sum of consecutive naturals, for example, 21089 + ... + 24102.

It is an arithmetic number, because the mean of its divisors is an integer number (9354744).

Almost surely, 268102837 is an apocalyptic number.

It is an amenable number.

68102837 is a deficient number, since it is larger than the sum of its proper divisors (6735115).

68102837 is a wasteful number, since it uses less digits than its factorization.

68102837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45339.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 68102837 is about 8252.4443045682. Note that the first 3 decimals coincide. The cubic root of 68102837 is about 408.3711639900.

The spelling of 68102837 in words is "sixty-eight million, one hundred two thousand, eight hundred thirty-seven".

Divisors: 1 11 137 1507 45191 497101 6191167 68102837