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1389110801 = 13317337081
BaseRepresentation
bin101001011001100…
…0010011000010001
310120210212010210012
41102303002120101
510321103021201
6345501244305
746265150501
oct12263023021
93523763705
101389110801
11653131561
12329263695
13191a38270
14d26b9a01
1581e435bb
hex52cc2611

1389110801 has 8 divisors (see below), whose sum is σ = 1500689064. Its totient is φ = 1278207360.

The previous prime is 1389110797. The next prime is 1389110819. The reversal of 1389110801 is 1080119831.

It can be written as a sum of positive squares in 4 ways, for example, as 268468225 + 1120642576 = 16385^2 + 33476^2 .

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 1389110801 - 22 = 1389110797 is a prime.

It is a super-4 number, since 4×13891108014 (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389110201) 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, 164420 + ... + 172661.

It is an arithmetic number, because the mean of its divisors is an integer number (187586133).

Almost surely, 21389110801 is an apocalyptic number.

It is an amenable number.

1389110801 is a deficient number, since it is larger than the sum of its proper divisors (111578263).

1389110801 is a wasteful number, since it uses less digits than its factorization.

1389110801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337411.

The product of its (nonzero) digits is 1728, while the sum is 32.

The square root of 1389110801 is about 37270.7767694745. The cubic root of 1389110801 is about 1115.7810024175.

The spelling of 1389110801 in words is "one billion, three hundred eighty-nine million, one hundred ten thousand, eight hundred one".

Divisors: 1 13 317 4121 337081 4382053 106854677 1389110801