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4389394471 = 721137892473
BaseRepresentation
bin1000001011010000…
…01101100000100111
3102022220102100020121
410011220031200213
532442141110341
62003315542411
7213526144300
oct40550154047
912286370217
104389394471
111952776040
12a25bbaa07
1354c4bb947
142d8d577a7
151aa5414d1
hex105a0d827

4389394471 has 48 divisors (see below), whose sum is σ = 5787378720. Its totient is φ = 3289144320.

The previous prime is 4389394417. The next prime is 4389394481. The reversal of 4389394471 is 1744939834.

It is not a de Polignac number, because 4389394471 - 29 = 4389393959 is a prime.

It is a super-3 number, since 3×43893944713 (a number of 30 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389394411) 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 47 ways as a sum of consecutive naturals, for example, 1773691 + ... + 1776163.

It is an arithmetic number, because the mean of its divisors is an integer number (120570390).

Almost surely, 24389394471 is an apocalyptic number.

4389394471 is a deficient number, since it is larger than the sum of its proper divisors (1397984249).

4389394471 is a wasteful number, since it uses less digits than its factorization.

4389394471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624 (or 2617 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The square root of 4389394471 is about 66252.5053941359. The cubic root of 4389394471 is about 1637.3249160045.

The spelling of 4389394471 in words is "four billion, three hundred eighty-nine million, three hundred ninety-four thousand, four hundred seventy-one".

Divisors: 1 7 11 37 49 77 89 259 407 539 623 979 1813 2473 2849 3293 4361 6853 17311 19943 23051 27203 36223 47971 91501 121177 161357 190421 220097 253561 640507 1006511 1332947 1540679 1774927 2421067 4483549 7045577 8143589 10784753 16947469 49319039 57005123 89579479 118632283 399035861 627056353 4389394471