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1389141 = 321331383
BaseRepresentation
bin101010011001001010101
32121120112200
411103021111
5323423031
645435113
714543655
oct5231125
92546480
101389141
11869756
1256ba99
133983a0
14282365
151c68e6
hex153255

1389141 has 24 divisors (see below), whose sum is σ = 2236416. Its totient is φ = 825120.

The previous prime is 1389139. The next prime is 1389149. The reversal of 1389141 is 1419831.

It is not a de Polignac number, because 1389141 - 21 = 1389139 is a prime.

1389141 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3436 + ... + 3818.

It is an arithmetic number, because the mean of its divisors is an integer number (93184).

21389141 is an apocalyptic number.

It is an amenable number.

1389141 is a deficient number, since it is larger than the sum of its proper divisors (847275).

1389141 is a wasteful number, since it uses less digits than its factorization.

1389141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 430 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1389141 is about 1178.6182588099. The cubic root of 1389141 is about 111.5789087980.

The spelling of 1389141 in words is "one million, three hundred eighty-nine thousand, one hundred forty-one".

Divisors: 1 3 9 13 31 39 93 117 279 383 403 1149 1209 3447 3627 4979 11873 14937 35619 44811 106857 154349 463047 1389141