Search a number
-
+
68093454 = 231113194177
BaseRepresentation
bin1000000111100…
…00011000001110
311202010111122210
410003300120032
5114412442304
610431251250
71454533122
oct403603016
9152114583
1068093454
1135489690
121a979b26
1311151ab0
149087582
155ea0c89
hex40f060e

68093454 has 64 divisors (see below), whose sum is σ = 168456960. Its totient is φ = 18040320.

The previous prime is 68093429. The next prime is 68093489. The reversal of 68093454 is 45439086.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14214 + ... + 18390.

It is an arithmetic number, because the mean of its divisors is an integer number (2632140).

Almost surely, 268093454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68093454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84228480).

68093454 is an abundant number, since it is smaller than the sum of its proper divisors (100363506).

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

68093454 is a wasteful number, since it uses less digits than its factorization.

68093454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 68093454 is about 8251.8757867530. The cubic root of 68093454 is about 408.3524084198.

The spelling of 68093454 in words is "sixty-eight million, ninety-three thousand, four hundred fifty-four".

Divisors: 1 2 3 6 11 13 19 22 26 33 38 39 57 66 78 114 143 209 247 286 418 429 494 627 741 858 1254 1482 2717 4177 5434 8151 8354 12531 16302 25062 45947 54301 79363 91894 108602 137841 158726 162903 238089 275682 325806 476178 597311 872993 1031719 1194622 1745986 1791933 2063438 2618979 3095157 3583866 5237958 6190314 11348909 22697818 34046727 68093454