Search a number
-
+
168630361 = 1728335051
BaseRepresentation
bin10100000110100…
…01100001011001
3102202022022100221
422003101201121
5321132132421
624422200041
74115222464
oct1203214131
9382268327
10168630361
1187207539
1248583021
1328c22aa3
14185782db
15ec0e841
hexa0d1859

168630361 has 8 divisors (see below), whose sum is σ = 179185824. Its totient is φ = 158145600.

The previous prime is 168630311. The next prime is 168630373. The reversal of 168630361 is 163036861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168630361 - 27 = 168630233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168630311) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12715 + ... + 22336.

It is an arithmetic number, because the mean of its divisors is an integer number (22398228).

Almost surely, 2168630361 is an apocalyptic number.

It is an amenable number.

168630361 is a deficient number, since it is larger than the sum of its proper divisors (10555463).

168630361 is a wasteful number, since it uses less digits than its factorization.

168630361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35351.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 168630361 is about 12985.7753330327. The cubic root of 168630361 is about 552.4741001898.

The spelling of 168630361 in words is "one hundred sixty-eight million, six hundred thirty thousand, three hundred sixty-one".

Divisors: 1 17 283 4811 35051 595867 9919433 168630361