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8485380 = 22325174759
BaseRepresentation
bin100000010111…
…101000000100
3120222002202100
4200113220010
54133013010
6501512100
7132060501
oct40275004
916862670
108485380
114876212
122a12630
1319b1347
1411ac4a8
15b292c0
hex817a04

8485380 has 144 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 2049024.

The previous prime is 8485331. The next prime is 8485387. The reversal of 8485380 is 835848.

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

It is not an unprimeable number, because it can be changed into a prime (8485387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143791 + ... + 143849.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 28485380 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 8485380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14152320).

8485380 is an abundant number, since it is smaller than the sum of its proper divisors (19819260).

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

8485380 is a wasteful number, since it uses less digits than its factorization.

8485380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8485380 is about 2912.9675590367. The cubic root of 8485380 is about 203.9656805012.

The spelling of 8485380 in words is "eight million, four hundred eighty-five thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 17 18 20 30 34 36 45 47 51 59 60 68 85 90 94 102 118 141 153 170 177 180 188 204 235 236 255 282 295 306 340 354 423 470 510 531 564 590 612 705 708 765 799 846 885 940 1003 1020 1062 1180 1410 1530 1598 1692 1770 2006 2115 2124 2397 2655 2773 2820 3009 3060 3196 3540 3995 4012 4230 4794 5015 5310 5546 6018 7191 7990 8319 8460 9027 9588 10030 10620 11092 11985 12036 13865 14382 15045 15980 16638 18054 20060 23970 24957 27730 28764 30090 33276 35955 36108 41595 45135 47141 47940 49914 55460 60180 71910 83190 90270 94282 99828 124785 141423 143820 166380 180540 188564 235705 249570 282846 424269 471410 499140 565692 707115 848538 942820 1414230 1697076 2121345 2828460 4242690 8485380