Search a number
-
+
86196880 = 24572111999
BaseRepresentation
bin1010010001101…
…00001010010000
320000012020220001
411020310022100
5134031300010
612315255344
72064442600
oct510641220
9200166801
1086196880
1144723aa0
1224a4a554
1314b1cb93
14b63ac00
157879c3a
hex5234290

86196880 has 120 divisors (see below), whose sum is σ = 254448000. Its totient is φ = 26853120.

The previous prime is 86196871. The next prime is 86196881. The reversal of 86196880 is 8869168.

It is a super-7 number, since 7×861968807 (a number of 57 digits) contains 7777777 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86196880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86196881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42121 + ... + 44119.

It is an arithmetic number, because the mean of its divisors is an integer number (2120400).

Almost surely, 286196880 is an apocalyptic number.

86196880 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 86196880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127224000).

86196880 is an abundant number, since it is smaller than the sum of its proper divisors (168251120).

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

86196880 is a wasteful number, since it uses less digits than its factorization.

86196880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 86196880 is about 9284.2274853646. The cubic root of 86196880 is about 441.7370725939.

The spelling of 86196880 in words is "eighty-six million, one hundred ninety-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 49 55 56 70 77 80 88 98 110 112 140 154 176 196 220 245 280 308 385 392 440 490 539 560 616 770 784 880 980 1078 1232 1540 1960 1999 2156 2695 3080 3920 3998 4312 5390 6160 7996 8624 9995 10780 13993 15992 19990 21560 21989 27986 31984 39980 43120 43978 55972 69965 79960 87956 97951 109945 111944 139930 153923 159920 175912 195902 219890 223888 279860 307846 351824 391804 439780 489755 559720 615692 769615 783608 879560 979510 1077461 1119440 1231384 1539230 1567216 1759120 1959020 2154922 2462768 3078460 3918040 4309844 5387305 6156920 7836080 8619688 10774610 12313840 17239376 21549220 43098440 86196880