Search a number
-
+
68148028 = 22132945191
BaseRepresentation
bin1000000111111…
…01101100111100
311202020021112001
410003331230330
5114421214103
610432352044
71455151204
oct403755474
9152207461
1068148028
1135516693
121a9a5624
13111708a0
14909d404
155eb201d
hex40fdb3c

68148028 has 24 divisors (see below), whose sum is σ = 132864480. Its totient is φ = 30367680.

The previous prime is 68147977. The next prime is 68148071. The reversal of 68148028 is 82084186.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21088 + ... + 24103.

It is an arithmetic number, because the mean of its divisors is an integer number (5536020).

Almost surely, 268148028 is an apocalyptic number.

It is an amenable number.

68148028 is a deficient number, since it is larger than the sum of its proper divisors (64716452).

68148028 is a wasteful number, since it uses less digits than its factorization.

68148028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45237 (or 45235 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 68148028 is about 8255.1818877600. The cubic root of 68148028 is about 408.4614716365.

The spelling of 68148028 in words is "sixty-eight million, one hundred forty-eight thousand, twenty-eight".

Divisors: 1 2 4 13 26 29 52 58 116 377 754 1508 45191 90382 180764 587483 1174966 1310539 2349932 2621078 5242156 17037007 34074014 68148028