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168949168 = 2423974733
BaseRepresentation
bin10100001000111…
…11010110110000
3102202220111200121
422010133112300
5321222333133
624433100024
74121021113
oct1204372660
9382814617
10168949168
1187405013
12486b7614
1329004c2b
141861c57a
15ec7402d
hexa11f5b0

168949168 has 40 divisors (see below), whose sum is σ = 345165408. Its totient is φ = 79951872.

The previous prime is 168949147. The next prime is 168949171. The reversal of 168949168 is 861949861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33330 + ... + 38062.

Almost surely, 2168949168 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 168949168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172582704).

168949168 is an abundant number, since it is smaller than the sum of its proper divisors (176216240).

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

168949168 is a wasteful number, since it uses less digits than its factorization.

168949168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861 (or 4855 counting only the distinct ones).

The product of its digits is 746496, while the sum is 52.

The square root of 168949168 is about 12998.0447760423. The cubic root of 168949168 is about 552.8220441168.

It can be divided in two parts, 16894 and 9168, that added together give a palindrome (26062).

The spelling of 168949168 in words is "one hundred sixty-eight million, nine hundred forty-nine thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 23 46 92 97 184 194 368 388 776 1552 2231 4462 4733 8924 9466 17848 18932 35696 37864 75728 108859 217718 435436 459101 870872 918202 1741744 1836404 3672808 7345616 10559323 21118646 42237292 84474584 168949168