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8344144080 = 2432520815569
BaseRepresentation
bin1111100010101100…
…11000100011010000
3210112111222102211100
413301112120203100
5114042100102310
63455551544400
7413530024446
oct76126304320
923474872740
108344144080
1135a2062a48
12174a52b100
13a2c928a7c
1459228cb96
1533c828ec0
hex1f15988d0

8344144080 has 120 divisors (see below), whose sum is σ = 28040917320. Its totient is φ = 2223636480.

The previous prime is 8344144073. The next prime is 8344144099. The reversal of 8344144080 is 804414438.

It can be written as a sum of positive squares in 4 ways, for example, as 63872064 + 8280272016 = 7992^2 + 90996^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1495536 + ... + 1501104.

It is an arithmetic number, because the mean of its divisors is an integer number (233674311).

Almost surely, 28344144080 is an apocalyptic number.

8344144080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8344144080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14020458660).

8344144080 is an abundant number, since it is smaller than the sum of its proper divisors (19696773240).

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

8344144080 is a wasteful number, since it uses less digits than its factorization.

8344144080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7669 (or 7660 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 8344144080 is about 91346.2866240331. The cubic root of 8344144080 is about 2028.2769949485.

The spelling of 8344144080 in words is "eight billion, three hundred forty-four million, one hundred forty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 2081 4162 5569 6243 8324 10405 11138 12486 16648 16707 18729 20810 22276 24972 27845 31215 33296 33414 37458 41620 44552 49944 50121 55690 62430 66828 74916 83240 83535 89104 93645 99888 100242 111380 124860 133656 149832 166480 167070 187290 200484 222760 249720 250605 267312 299664 334140 374580 400968 445520 499440 501210 668280 749160 801936 1002420 1336560 1498320 2004840 4009680 11589089 23178178 34767267 46356356 57945445 69534534 92712712 104301801 115890890 139069068 173836335 185425424 208603602 231781780 278138136 347672670 417207204 463563560 521509005 556276272 695345340 834414408 927127120 1043018010 1390690680 1668828816 2086036020 2781381360 4172072040 8344144080