Search a number
-
+
87343560 = 23325242621
BaseRepresentation
bin1010011010011…
…00000111001000
320002100111211200
411031030013020
5134324443220
612400024200
72110256643
oct515140710
9202314750
1087343560
1145337567
1225302060
1315131aa5
14b858a5a
157a04890
hex534c1c8

87343560 has 48 divisors (see below), whose sum is σ = 283867740. Its totient is φ = 23291520.

The previous prime is 87343559. The next prime is 87343579. The reversal of 87343560 is 6534378.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85488516 + 1855044 = 9246^2 + 1362^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120951 + ... + 121670.

Almost surely, 287343560 is an apocalyptic number.

It is an amenable number.

87343560 is an abundant number, since it is smaller than the sum of its proper divisors (196524180).

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

87343560 is a wasteful number, since it uses less digits than its factorization.

87343560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242638 (or 242631 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 87343560 is about 9345.7776562467. Note that the first 3 decimals coincide. The cubic root of 87343560 is about 443.6872645557.

The spelling of 87343560 in words is "eighty-seven million, three hundred forty-three thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 242621 485242 727863 970484 1213105 1455726 1940968 2183589 2426210 2911452 3639315 4367178 4852420 5822904 7278630 8734356 9704840 10917945 14557260 17468712 21835890 29114520 43671780 87343560