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168418245 = 3511227883
BaseRepresentation
bin10100000100111…
…01101111000101
3102201220112101210
422002131233011
5321103340440
624413442033
74113350202
oct1202355705
9381815353
10168418245
1187082136
12484a0319
1328b7a388
1418520ca9
15ebbba80
hexa09dbc5

168418245 has 8 divisors (see below), whose sum is σ = 269469216. Its totient is φ = 89823056.

The previous prime is 168418183. The next prime is 168418247. The reversal of 168418245 is 542814861.

168418245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 168418245 - 26 = 168418181 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168418247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5613927 + ... + 5613956.

It is an arithmetic number, because the mean of its divisors is an integer number (33683652).

Almost surely, 2168418245 is an apocalyptic number.

168418245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168418245 is a deficient number, since it is larger than the sum of its proper divisors (101050971).

168418245 is a wasteful number, since it uses less digits than its factorization.

168418245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11227891.

The product of its digits is 61440, while the sum is 39.

The square root of 168418245 is about 12977.6055187388. The cubic root of 168418245 is about 552.2423551151.

The spelling of 168418245 in words is "one hundred sixty-eight million, four hundred eighteen thousand, two hundred forty-five".

Divisors: 1 3 5 15 11227883 33683649 56139415 168418245