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3987337760 = 255721729917
BaseRepresentation
bin1110110110101001…
…1111001000100000
3101021212212202010022
43231222133020200
531131224302020
61455354253012
7200544545300
oct35552371040
911255782108
103987337760
11176682596a
12933427168
134b710a173
1429b7b9600
151850c3625
hexeda9f220

3987337760 has 144 divisors (see below), whose sum is σ = 11603038104. Its totient is φ = 1286627328.

The previous prime is 3987337759. The next prime is 3987337763. The reversal of 3987337760 is 677337893.

3987337760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3965472784 + 21864976 = 62972^2 + 4676^2 .

It is not an unprimeable number, because it can be changed into a prime (3987337763) 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, 118322 + ... + 148238.

Almost surely, 23987337760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3987337760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5801519052).

3987337760 is an abundant number, since it is smaller than the sum of its proper divisors (7615700344).

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

3987337760 is a wasteful number, since it uses less digits than its factorization.

3987337760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29963 (or 29948 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 53.

The square root of 3987337760 is about 63145.3700598864. The cubic root of 3987337760 is about 1585.7242769863.

The spelling of 3987337760 in words is "three billion, nine hundred eighty-seven million, three hundred thirty-seven thousand, seven hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 40 49 56 68 70 80 85 98 112 119 136 140 160 170 196 224 238 245 272 280 340 392 476 490 544 560 595 680 784 833 952 980 1120 1190 1360 1568 1666 1904 1960 2380 2720 3332 3808 3920 4165 4760 6664 7840 8330 9520 13328 16660 19040 26656 29917 33320 59834 66640 119668 133280 149585 209419 239336 299170 418838 478672 508589 598340 837676 957344 1017178 1047095 1196680 1465933 1675352 2034356 2094190 2393360 2542945 2931866 3350704 3560123 4068712 4188380 4786720 5085890 5863732 6701408 7120246 7329665 8137424 8376760 10171780 11727464 14240492 14659330 16274848 16753520 17800615 20343560 23454928 24920861 28480984 29318660 33507040 35601230 40687120 46909856 49841722 56961968 58637320 71202460 81374240 99683444 113923936 117274640 124604305 142404920 199366888 234549280 249208610 284809840 398733776 498417220 569619680 797467552 996834440 1993668880 3987337760