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2068905 = 35137927
BaseRepresentation
bin111111001000110101001
310220010000010
413321012221
51012201110
6112202133
723404536
oct7710651
93803003
102068905
111193443
12839349
13575907
143bbd8d
152ad020
hex1f91a9

2068905 has 8 divisors (see below), whose sum is σ = 3310272. Its totient is φ = 1103408.

The previous prime is 2068903. The next prime is 2068921. The reversal of 2068905 is 5098602.

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 2068905 - 21 = 2068903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2068903) 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, 68949 + ... + 68978.

It is an arithmetic number, because the mean of its divisors is an integer number (413784).

22068905 is an apocalyptic number.

It is an amenable number.

2068905 is a deficient number, since it is larger than the sum of its proper divisors (1241367).

2068905 is a wasteful number, since it uses less digits than its factorization.

2068905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137935.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2068905 is about 1438.3688678500. The cubic root of 2068905 is about 127.4227136377.

The spelling of 2068905 in words is "two million, sixty-eight thousand, nine hundred five".

Divisors: 1 3 5 15 137927 413781 689635 2068905