Search a number
-
+
68895055 = 513779011
BaseRepresentation
bin1000001101101…
…00000101001111
311210122020020201
410012310011033
5120114120210
610500354331
71464412135
oct406640517
9153566221
1068895055
1135986969
121b0a59a7
1311372908
149215755
1560ad53a
hex41b414f

68895055 has 4 divisors (see below), whose sum is σ = 82674072. Its totient is φ = 55116040.

The previous prime is 68895041. The next prime is 68895059. The reversal of 68895055 is 55059886.

It is a happy number.

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

It is not a de Polignac number, because 68895055 - 25 = 68895023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68894996 and 68895014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68895059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6889501 + ... + 6889510.

It is an arithmetic number, because the mean of its divisors is an integer number (20668518).

Almost surely, 268895055 is an apocalyptic number.

68895055 is a deficient number, since it is larger than the sum of its proper divisors (13779017).

68895055 is a wasteful number, since it uses less digits than its factorization.

68895055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13779016.

The product of its (nonzero) digits is 432000, while the sum is 46.

The square root of 68895055 is about 8300.3045124863. The cubic root of 68895055 is about 409.9485459919.

The spelling of 68895055 in words is "sixty-eight million, eight hundred ninety-five thousand, fifty-five".

Divisors: 1 5 13779011 68895055