Search a number
-
+
168487068 = 223171137309
BaseRepresentation
bin10100000101011…
…10100010011100
3102202001000210210
422002232202130
5321113041233
624415132420
74114054641
oct1202564234
9382030723
10168487068
1187119912
1248514110
1328ba27b9
141853bdc8
15ebd2163
hexa0ae89c

168487068 has 48 divisors (see below), whose sum is σ = 420003360. Its totient is φ = 52383744.

The previous prime is 168487037. The next prime is 168487073. The reversal of 168487068 is 860784861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19398 + ... + 26706.

It is an arithmetic number, because the mean of its divisors is an integer number (8750070).

Almost surely, 2168487068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168487068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210001680).

168487068 is an abundant number, since it is smaller than the sum of its proper divisors (251516292).

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

168487068 is a wasteful number, since it uses less digits than its factorization.

168487068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446 (or 7444 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 168487068 is about 12980.2568541612. The cubic root of 168487068 is about 552.3175682641.

The spelling of 168487068 in words is "one hundred sixty-eight million, four hundred eighty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 113 204 226 339 452 678 1356 1921 3842 5763 7309 7684 11526 14618 21927 23052 29236 43854 87708 124253 248506 372759 497012 745518 825917 1491036 1651834 2477751 3303668 4955502 9911004 14040589 28081178 42121767 56162356 84243534 168487068