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168948899 = 7113213589
BaseRepresentation
bin10100001000111…
…11010010100011
3102202220111022122
422010133102203
5321222331044
624433054455
74121020250
oct1204372243
9382814278
10168948899
1187404899
12486b742b
1329004a82
141861c427
15ec73dee
hexa11f4a3

168948899 has 8 divisors (see below), whose sum is σ = 194794080. Its totient is φ = 143531136.

The previous prime is 168948887. The next prime is 168948991. The reversal of 168948899 is 998849861.

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

It is not a de Polignac number, because 168948899 - 24 = 168948883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168948599) by changing a digit.

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, 106004 + ... + 107585.

It is an arithmetic number, because the mean of its divisors is an integer number (24349260).

Almost surely, 2168948899 is an apocalyptic number.

168948899 is a deficient number, since it is larger than the sum of its proper divisors (25845181).

168948899 is a wasteful number, since it uses less digits than its factorization.

168948899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213709.

The product of its digits is 8957952, while the sum is 62.

The square root of 168948899 is about 12998.0344283280. The cubic root of 168948899 is about 552.8217507165.

The spelling of 168948899 in words is "one hundred sixty-eight million, nine hundred forty-eight thousand, eight hundred ninety-nine".

Divisors: 1 7 113 791 213589 1495123 24135557 168948899