Search a number
-
+
68257548 = 22321896043
BaseRepresentation
bin1000001000110…
…00011100001100
311202102211202100
410010120130030
5114433220143
610434555100
71456115412
oct404303414
9152384670
1068257548
11355909a7
121aa38a90
13111ab6a8
1490cb2b2
155ed46d3
hex411870c

68257548 has 18 divisors (see below), whose sum is σ = 172540004. Its totient is φ = 22752504.

The previous prime is 68257507. The next prime is 68257549. The reversal of 68257548 is 84575286.

68257548 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

68257548 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (68257549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 947986 + ... + 948057.

Almost surely, 268257548 is an apocalyptic number.

It is an amenable number.

68257548 is an abundant number, since it is smaller than the sum of its proper divisors (104282456).

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

68257548 is a wasteful number, since it uses less digits than its factorization.

68257548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896053 (or 1896048 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 68257548 is about 8261.8126340410. The cubic root of 68257548 is about 408.6801659447.

The spelling of 68257548 in words is "sixty-eight million, two hundred fifty-seven thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1896043 3792086 5688129 7584172 11376258 17064387 22752516 34128774 68257548