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8085038780 = 22571328115809
BaseRepresentation
bin1111000011110011…
…11110011010111100
3202212110102112011202
413201321332122330
5113024232220110
63414134235032
7404232460430
oct74171763274
922773375152
108085038780
113479880335
1216977b5a78
139bb048b20
14569ac29c0
15324be70a5
hex1e1e7e6bc

8085038780 has 96 divisors (see below), whose sum is σ = 20972407680. Its totient is φ = 2549514240.

The previous prime is 8085038779. The next prime is 8085038803. The reversal of 8085038780 is 878305808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 503516 + ... + 519324.

It is an arithmetic number, because the mean of its divisors is an integer number (218462580).

Almost surely, 28085038780 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 8085038780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10486203840).

8085038780 is an abundant number, since it is smaller than the sum of its proper divisors (12887368900).

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

8085038780 is a wasteful number, since it uses less digits than its factorization.

8085038780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16119 (or 16117 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 8085038780 is about 89916.8436946049. The cubic root of 8085038780 is about 2007.0616025402.

The spelling of 8085038780 in words is "eight billion, eighty-five million, thirty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 281 364 455 562 910 1124 1405 1820 1967 2810 3653 3934 5620 7306 7868 9835 14612 15809 18265 19670 25571 31618 36530 39340 51142 63236 73060 79045 102284 110663 127855 158090 205517 221326 255710 316180 411034 442652 511420 553315 822068 1027585 1106630 1438619 2055170 2213260 2877238 4110340 4442329 5754476 7193095 8884658 14386190 17769316 22211645 28772380 31096303 44423290 57750277 62192606 88846580 115500554 124385212 155481515 231001108 288751385 310963030 404251939 577502770 621926060 808503878 1155005540 1617007756 2021259695 4042519390 8085038780