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4387804434 = 2321319397157
BaseRepresentation
bin1000001011000100…
…01001010100010010
3102022210102120010100
410011202021110102
532441234220214
62003221513230
7213506502516
oct40542112422
912283376110
104387804434
11195188a462
12a25572816
1354c082cb0
142d8a62146
151aa32a309
hex105889512

4387804434 has 48 divisors (see below), whose sum is σ = 10291363992. Its totient is φ = 1343084544.

The previous prime is 4387804423. The next prime is 4387804451. The reversal of 4387804434 is 4344087834.

It can be written as a sum of positive squares in 4 ways, for example, as 1922384025 + 2465420409 = 43845^2 + 49653^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4387804434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3417 + ... + 93740.

Almost surely, 24387804434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4387804434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5145681996).

4387804434 is an abundant number, since it is smaller than the sum of its proper divisors (5903559558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4387804434 is a wasteful number, since it uses less digits than its factorization.

4387804434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97371 (or 97368 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The square root of 4387804434 is about 66240.5044817746. The cubic root of 4387804434 is about 1637.1271877730.

The spelling of 4387804434 in words is "four billion, three hundred eighty-seven million, eight hundred four thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 193 234 386 579 1158 1737 2509 3474 5018 7527 15054 22581 45162 97157 194314 291471 582942 874413 1263041 1748826 2526082 3789123 7578246 11367369 18751301 22734738 37502602 56253903 112507806 168761709 243766913 337523418 487533826 731300739 1462601478 2193902217 4387804434