Search a number
-
+
68321874 = 2319957221
BaseRepresentation
bin1000001001010…
…00001001010010
311202120002222210
410010220021102
5114442244444
610440212550
71456504065
oct404501122
9152502883
1068321874
1135625265
121aa6a156
1311201a5a
1491068dc
155ee87b9
hex4128252

68321874 has 16 divisors (see below), whose sum is σ = 137332800. Its totient is φ = 22659120.

The previous prime is 68321873. The next prime is 68321909. The reversal of 68321874 is 47812386.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (68321873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27417 + ... + 29804.

It is an arithmetic number, because the mean of its divisors is an integer number (8583300).

Almost surely, 268321874 is an apocalyptic number.

68321874 is an abundant number, since it is smaller than the sum of its proper divisors (69010926).

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

68321874 is a wasteful number, since it uses less digits than its factorization.

68321874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57425.

The product of its digits is 64512, while the sum is 39.

The square root of 68321874 is about 8265.7046886518. The cubic root of 68321874 is about 408.8085058732.

The spelling of 68321874 in words is "sixty-eight million, three hundred twenty-one thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 199 398 597 1194 57221 114442 171663 343326 11386979 22773958 34160937 68321874