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68068099 = 116188009
BaseRepresentation
bin1000000111010…
…10001100000011
311202002012212201
410003222030003
5114411134344
610430534031
71454366161
oct403521403
9152065781
1068068099
1135471630
121a967317
13111433a8
14907c231
155e984d4
hex40ea303

68068099 has 4 divisors (see below), whose sum is σ = 74256120. Its totient is φ = 61880080.

The previous prime is 68068093. The next prime is 68068103. The reversal of 68068099 is 99086086.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68068099 - 213 = 68059907 is a prime.

It is a super-2 number, since 2×680680992 = 9266532202947602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68068093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3093994 + ... + 3094015.

It is an arithmetic number, because the mean of its divisors is an integer number (18564030).

Almost surely, 268068099 is an apocalyptic number.

68068099 is a deficient number, since it is larger than the sum of its proper divisors (6188021).

68068099 is a wasteful number, since it uses less digits than its factorization.

68068099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188020.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 68068099 is about 8250.3393263550. The cubic root of 68068099 is about 408.3017179835.

The spelling of 68068099 in words is "sixty-eight million, sixty-eight thousand, ninety-nine".

Divisors: 1 11 6188009 68068099