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86390050900 = 225217247320549
BaseRepresentation
bin101000001110100111…
…1111001000001010100
322020222200010021220211
41100131033321001110
52403411323112100
6103404222335204
76145553213416
oct1203517710124
9266880107824
1086390050900
1133701a2798a
12148aba2a504
1381b9c6a81a
1442776bc9b6
1523a94a21ba
hex141d3f9054

86390050900 has 72 divisors (see below), whose sum is σ = 198583774200. Its totient is φ = 32508579840.

The previous prime is 86390050891. The next prime is 86390050963. The reversal of 86390050900 is 905009368.

It can be written as a sum of positive squares in 12 ways, for example, as 355775044 + 86034275856 = 18862^2 + 293316^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4193826 + ... + 4214374.

It is an arithmetic number, because the mean of its divisors is an integer number (2758107975).

Almost surely, 286390050900 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 86390050900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99291887100).

86390050900 is an abundant number, since it is smaller than the sum of its proper divisors (112193723300).

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

86390050900 is a wasteful number, since it uses less digits than its factorization.

86390050900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23053 (or 23046 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 86390050900 in words is "eighty-six billion, three hundred ninety million, fifty thousand, nine hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 170 340 425 850 1700 2473 4946 9892 12365 20549 24730 41098 42041 49460 61825 82196 84082 102745 123650 168164 205490 210205 247300 349333 410980 420410 513725 698666 840820 1027450 1051025 1397332 1746665 2054900 2102050 3493330 4204100 6986660 8733325 17466650 34933300 50817677 101635354 203270708 254088385 508176770 863900509 1016353540 1270441925 1727801018 2540883850 3455602036 4319502545 5081767700 8639005090 17278010180 21597512725 43195025450 86390050900