Search a number
-
+
68895619 = 1329182747
BaseRepresentation
bin1000001101101…
…00001110000011
311210122021000121
410012310032003
5120114124434
610500401111
71464413602
oct406641603
9153567017
1068895619
1135987331
121b0a6197
1311372c50
149215a39
1560ad7b4
hex41b4383

68895619 has 8 divisors (see below), whose sum is σ = 76754160. Its totient is φ = 61402656.

The previous prime is 68895599. The next prime is 68895623. The reversal of 68895619 is 91659886.

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 68895619 - 223 = 60507011 is a prime.

It is a super-2 number, since 2×688956192 = 9493212634786322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68895689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90997 + ... + 91750.

It is an arithmetic number, because the mean of its divisors is an integer number (9594270).

Almost surely, 268895619 is an apocalyptic number.

68895619 is a deficient number, since it is larger than the sum of its proper divisors (7858541).

68895619 is a wasteful number, since it uses less digits than its factorization.

68895619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182789.

The product of its digits is 933120, while the sum is 52.

The square root of 68895619 is about 8300.3384870739. The cubic root of 68895619 is about 409.9496646515.

The spelling of 68895619 in words is "sixty-eight million, eight hundred ninety-five thousand, six hundred nineteen".

Divisors: 1 13 29 377 182747 2375711 5299663 68895619