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6868149 = 37872909
BaseRepresentation
bin11010001100110010110101
3110220221022220
4122030302311
53224240044
6403112553
7112243521
oct32146265
913827286
106868149
113971162
122372759
1315661c2
14caad81
1590a019
hex68ccb5

6868149 has 8 divisors (see below), whose sum is σ = 9172320. Its totient is φ = 4571376.

The previous prime is 6868133. The next prime is 6868163. The reversal of 6868149 is 9418686.

6868149 is digitally balanced in base 4, 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 not a de Polignac number, because 6868149 - 24 = 6868133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6868149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868109) 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, 907 + ... + 3815.

It is an arithmetic number, because the mean of its divisors is an integer number (1146540).

Almost surely, 26868149 is an apocalyptic number.

It is an amenable number.

6868149 is a deficient number, since it is larger than the sum of its proper divisors (2304171).

6868149 is a wasteful number, since it uses less digits than its factorization.

6868149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699.

The product of its digits is 82944, while the sum is 42.

The square root of 6868149 is about 2620.7153603549. The cubic root of 6868149 is about 190.0844407679.

The spelling of 6868149 in words is "six million, eight hundred sixty-eight thousand, one hundred forty-nine".

Divisors: 1 3 787 2361 2909 8727 2289383 6868149