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85084480 = 26513113181
BaseRepresentation
bin1010001001001…
…00100101000000
312221002201222001
411010210211000
5133240200410
612235353344
72052130465
oct504444500
9187081861
1085084480
1144034258
12245b2854
1314820760
14b42b66c
15770a33a
hex5124940

85084480 has 112 divisors (see below), whose sum is σ = 221339664. Its totient is φ = 30965760.

The previous prime is 85084469. The next prime is 85084499. The reversal of 85084480 is 8448058.

It can be written as a sum of positive squares in 8 ways, for example, as 54878464 + 30206016 = 7408^2 + 5496^2 .

It is a congruent number.

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, 469990 + ... + 470170.

It is an arithmetic number, because the mean of its divisors is an integer number (1976247).

Almost surely, 285084480 is an apocalyptic number.

85084480 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 85084480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110669832).

85084480 is an abundant number, since it is smaller than the sum of its proper divisors (136255184).

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

85084480 is a wasteful number, since it uses less digits than its factorization.

85084480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 85084480 is about 9224.1248907417. The cubic root of 85084480 is about 439.8285833654.

The spelling of 85084480 in words is "eighty-five million, eighty-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 113 130 160 181 208 226 260 320 362 416 452 520 565 724 832 904 905 1040 1130 1448 1469 1808 1810 2080 2260 2353 2896 2938 3616 3620 4160 4520 4706 5792 5876 7232 7240 7345 9040 9412 11584 11752 11765 14480 14690 18080 18824 20453 23504 23530 28960 29380 36160 37648 40906 47008 47060 57920 58760 75296 81812 94016 94120 102265 117520 150592 163624 188240 204530 235040 265889 327248 376480 409060 470080 531778 654496 752960 818120 1063556 1308992 1329445 1636240 2127112 2658890 3272480 4254224 5317780 6544960 8508448 10635560 17016896 21271120 42542240 85084480