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68101 = 1141151
BaseRepresentation
bin10000101000000101
310110102021
4100220011
54134401
61243141
7402355
oct205005
9113367
1068101
1147190
12334b1
1324cc7
141ab65
15152a1
hex10a05

68101 has 8 divisors (see below), whose sum is σ = 76608. Its totient is φ = 60000.

The previous prime is 68099. The next prime is 68111. The reversal of 68101 is 10186.

68101 = 192 + 202 + ... + 592.

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

It is a 3-Lehmer number, since φ(68101) divides (68101-1)3.

It is a cyclic number.

It is not a de Polignac number, because 68101 - 21 = 68099 is a prime.

It is a deceptive number, since it divides R68100.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376 + ... + 526.

It is an arithmetic number, because the mean of its divisors is an integer number (9576).

It is a Poulet number, since it divides 268100-1.

268101 is an apocalyptic number.

68101 is the 151-st octagonal number.

It is an amenable number.

68101 is a deficient number, since it is larger than the sum of its proper divisors (8507).

68101 is a wasteful number, since it uses less digits than its factorization.

68101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 68101 is about 260.9616830111. The cubic root of 68101 is about 40.8367492168.

Adding to 68101 its reverse (10186), we get a palindrome (78287).

It can be divided in two parts, 68 and 101, that added together give a square (169 = 132).

The spelling of 68101 in words is "sixty-eight thousand, one hundred one".

Divisors: 1 11 41 151 451 1661 6191 68101