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1408068 = 223239113
BaseRepresentation
bin101010111110001000100
32122112111200
411113301010
5330024233
650102500
714653104
oct5276104
92575450
101408068
118819a2
1257aa30
133a3b9c
14289204
151cc313
hex157c44

1408068 has 18 divisors (see below), whose sum is σ = 3559374. Its totient is φ = 469344.

The previous prime is 1408067. The next prime is 1408079. The reversal of 1408068 is 8608041.

It can be written as a sum of positive squares in only one way, i.e., 956484 + 451584 = 978^2 + 672^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1408067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19521 + ... + 19592.

It is an arithmetic number, because the mean of its divisors is an integer number (197743).

21408068 is an apocalyptic number.

1408068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1408068 is an abundant number, since it is smaller than the sum of its proper divisors (2151306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1408068 is a wasteful number, since it uses less digits than its factorization.

1408068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39123 (or 39118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1408068 is about 1186.6204110835. The cubic root of 1408068 is about 112.0833775407.

Subtracting from 1408068 its sum of digits (27), we obtain a palindrome (1408041).

The spelling of 1408068 in words is "one million, four hundred eight thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 39113 78226 117339 156452 234678 352017 469356 704034 1408068