Search a number
-
+
68081148 = 2234210127
BaseRepresentation
bin1000000111011…
…01010111111100
311202002212210000
410003231113330
5114412044043
610431114300
71454452212
oct403552774
9152085700
1068081148
1135480413
121a972990
1311149305
149082cb2
155e9c2d3
hex40ed5fc

68081148 has 30 divisors (see below), whose sum is σ = 177978416. Its totient is φ = 22693608.

The previous prime is 68081137. The next prime is 68081213. The reversal of 68081148 is 84118086.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 104740 + ... + 105387.

Almost surely, 268081148 is an apocalyptic number.

It is an amenable number.

68081148 is an abundant number, since it is smaller than the sum of its proper divisors (109897268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68081148 is a wasteful number, since it uses less digits than its factorization.

68081148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210143 (or 210132 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 68081148 is about 8251.1301044160. The cubic root of 68081148 is about 408.3278074869.

The spelling of 68081148 in words is "sixty-eight million, eighty-one thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 210127 420254 630381 840508 1260762 1891143 2521524 3782286 5673429 7564572 11346858 17020287 22693716 34040574 68081148