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6868645 = 57196247
BaseRepresentation
bin11010001100111010100101
3110220222000021
4122030322211
53224244040
6403115141
7112245130
oct32147245
913828007
106868645
113971573
122372ab1
1315664b4
14cab217
1590a24a
hex68cea5

6868645 has 8 divisors (see below), whose sum is σ = 9419904. Its totient is φ = 4709904.

The previous prime is 6868613. The next prime is 6868649. The reversal of 6868645 is 5468686.

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 6868645 - 25 = 6868613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868649) 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, 98089 + ... + 98158.

It is an arithmetic number, because the mean of its divisors is an integer number (1177488).

Almost surely, 26868645 is an apocalyptic number.

It is an amenable number.

6868645 is a deficient number, since it is larger than the sum of its proper divisors (2551259).

6868645 is a wasteful number, since it uses less digits than its factorization.

6868645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196259.

The product of its digits is 276480, while the sum is 43.

The square root of 6868645 is about 2620.8099892972. The cubic root of 6868645 is about 190.0890164603.

The spelling of 6868645 in words is "six million, eight hundred sixty-eight thousand, six hundred forty-five".

Divisors: 1 5 7 35 196247 981235 1373729 6868645