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8085724080 = 243574812931
BaseRepresentation
bin1111000011111001…
…00101101110110000
3202212111201100020020
413201330211232300
5113024421132310
63414201043440
7404241343410
oct74174455660
922774640206
108085724080
11347a1a91a5
121697a86580
139bb228a25
14569c20640
15324cd0170
hex1e1f25bb0

8085724080 has 80 divisors (see below), whose sum is σ = 28646571264. Its totient is φ = 1848165120.

The previous prime is 8085724063. The next prime is 8085724091. The reversal of 8085724080 is 804275808.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2404786 + ... + 2408145.

Almost surely, 28085724080 is an apocalyptic number.

8085724080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8085724080 is an abundant number, since it is smaller than the sum of its proper divisors (20560847184).

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

8085724080 is a wasteful number, since it uses less digits than its factorization.

8085724080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812954 (or 4812948 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 8085724080 is about 89920.6543570497. The cubic root of 8085724080 is about 2007.1183081208.

Adding to 8085724080 its reverse (804275808), we get a palindrome (8889999888).

The spelling of 8085724080 in words is "eight billion, eighty-five million, seven hundred twenty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 4812931 9625862 14438793 19251724 24064655 28877586 33690517 38503448 48129310 57755172 67381034 72193965 77006896 96258620 101071551 115510344 134762068 144387930 168452585 192517240 202143102 231020688 269524136 288775860 336905170 385034480 404286204 505357755 539048272 577551720 673810340 808572408 1010715510 1155103440 1347620680 1617144816 2021431020 2695241360 4042862040 8085724080