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1389073413 = 372131967571
BaseRepresentation
bin101001011001011…
…1001010000000101
310120210210020111110
41102302321100011
510321100322123
6345500355233
746264633500
oct12262712005
93523706443
101389073413
11653106462
12329245b19
13191a24240
14d26aa137
1581e37493
hex52cb9405

1389073413 has 96 divisors (see below), whose sum is σ = 2483120640. Its totient is φ = 682577280.

The previous prime is 1389073393. The next prime is 1389073423. The reversal of 1389073413 is 3143709831.

It is a happy number.

It is not a de Polignac number, because 1389073413 - 25 = 1389073381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389073423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2432418 + ... + 2432988.

It is an arithmetic number, because the mean of its divisors is an integer number (25865840).

Almost surely, 21389073413 is an apocalyptic number.

1389073413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1389073413 is a deficient number, since it is larger than the sum of its proper divisors (1094047227).

1389073413 is a wasteful number, since it uses less digits than its factorization.

1389073413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1389073413 is about 37270.2751935104. The cubic root of 1389073413 is about 1115.7709918903.

The spelling of 1389073413 in words is "one billion, three hundred eighty-nine million, seventy-three thousand, four hundred thirteen".

Divisors: 1 3 7 13 19 21 39 49 57 67 91 133 147 201 247 273 399 469 571 637 741 871 931 1273 1407 1713 1729 1911 2613 2793 3283 3819 3997 5187 6097 7423 8911 9849 10849 11991 12103 16549 18291 22269 26733 27979 32547 36309 38257 42679 49647 51961 62377 75943 83937 114771 115843 128037 141037 155883 187131 227829 267799 347529 363727 423111 497341 531601 726883 803397 810901 987259 1091181 1492023 1594803 1874593 2180649 2432703 2961777 3481387 5088181 5623779 6910813 9449479 10444161 15264543 20732439 24369709 28348437 35617267 66146353 73109127 106851801 198439059 463024471 1389073413