Search a number
-
+
68738135 = 552126387
BaseRepresentation
bin1000001100011…
…01110001010111
311210100020222212
410012031301113
5120044110020
610453144035
71463156504
oct406156127
9153306885
1068738135
1135889a84
121b02b01b
131131936b
1491b44ab
15607bcc5
hex418dc57

68738135 has 8 divisors (see below), whose sum is σ = 82647216. Its totient is φ = 54882880.

The previous prime is 68738113. The next prime is 68738161. The reversal of 68738135 is 53183786.

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

It is not a de Polignac number, because 68738135 - 26 = 68738071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68738092 and 68738101.

It is a congruent number.

It is an unprimeable number.

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, 10589 + ... + 15798.

It is an arithmetic number, because the mean of its divisors is an integer number (10330902).

Almost surely, 268738135 is an apocalyptic number.

68738135 is a deficient number, since it is larger than the sum of its proper divisors (13909081).

68738135 is a wasteful number, since it uses less digits than its factorization.

68738135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26913.

The product of its digits is 120960, while the sum is 41.

The square root of 68738135 is about 8290.8464585952. The cubic root of 68738135 is about 409.6370672854.

The spelling of 68738135 in words is "sixty-eight million, seven hundred thirty-eight thousand, one hundred thirty-five".

Divisors: 1 5 521 2605 26387 131935 13747627 68738135