Search a number
-
+
168228015 = 3511215201
BaseRepresentation
bin10100000011011…
…11010010101111
3102201112212110020
422001233102233
5321031244030
624405413223
74111625454
oct1201572257
9381485406
10168228015
1186a6221a
124840a213
1328b11907
14184b182b
15eb80510
hexa06f4af

168228015 has 8 divisors (see below), whose sum is σ = 269164848. Its totient is φ = 89721600.

The previous prime is 168228007. The next prime is 168228031. The reversal of 168228015 is 510822861.

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

It is not a de Polignac number, because 168228015 - 23 = 168228007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5607586 + ... + 5607615.

It is an arithmetic number, because the mean of its divisors is an integer number (33645606).

Almost surely, 2168228015 is an apocalyptic number.

168228015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

168228015 is a deficient number, since it is larger than the sum of its proper divisors (100936833).

168228015 is a wasteful number, since it uses less digits than its factorization.

168228015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11215209.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 168228015 is about 12970.2742839155. The cubic root of 168228015 is about 552.0343557960.

The spelling of 168228015 in words is "one hundred sixty-eight million, two hundred twenty-eight thousand, fifteen".

Divisors: 1 3 5 15 11215201 33645603 56076005 168228015