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1387041 = 329107149
BaseRepresentation
bin101010010101000100001
32121110122220
411102220201
5323341131
645421253
714534565
oct5225041
92543586
101387041
11868117
1256a829
13397446
142816a5
151c5e96
hex152a21

1387041 has 16 divisors (see below), whose sum is σ = 1944000. Its totient is φ = 878528.

The previous prime is 1387039. The next prime is 1387069. The reversal of 1387041 is 1407831.

It is a cyclic number.

It is not a de Polignac number, because 1387041 - 21 = 1387039 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1387021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9235 + ... + 9383.

It is an arithmetic number, because the mean of its divisors is an integer number (121500).

21387041 is an apocalyptic number.

It is an amenable number.

1387041 is a deficient number, since it is larger than the sum of its proper divisors (556959).

1387041 is a wasteful number, since it uses less digits than its factorization.

1387041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1387041 is about 1177.7270481737. The cubic root of 1387041 is about 111.5226548777.

The spelling of 1387041 in words is "one million, three hundred eighty-seven thousand, forty-one".

Divisors: 1 3 29 87 107 149 321 447 3103 4321 9309 12963 15943 47829 462347 1387041