Search a number
-
+
168000012 = 22324666667
BaseRepresentation
bin10100000001101…
…11101000001100
3102201010021200200
422000313220030
5321002000022
624400453500
74106655645
oct1200675014
9381107620
10168000012
1186916994
124831a290
1328a61bbb
14184526cc
15eb37bac
hexa037a0c

168000012 has 18 divisors (see below), whose sum is σ = 424666788. Its totient is φ = 55999992.

The previous prime is 167999999. The next prime is 168000061. The reversal of 168000012 is 210000861.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2333298 + ... + 2333369.

Almost surely, 2168000012 is an apocalyptic number.

168000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168000012 is an abundant number, since it is smaller than the sum of its proper divisors (256666776).

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

168000012 is a wasteful number, since it uses less digits than its factorization.

168000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666677 (or 4666672 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 168000012 is about 12961.4818597258. The cubic root of 168000012 is about 551.7848484140.

Adding to 168000012 its reverse (210000861), we get a palindrome (378000873).

The spelling of 168000012 in words is "one hundred sixty-eight million, twelve", and thus it is an aban number.

Divisors: 1 2 3 4 6 9 12 18 36 4666667 9333334 14000001 18666668 28000002 42000003 56000004 84000006 168000012