Search a number
-
+
87085180058 = 243542590029
BaseRepresentation
bin101000100011010101…
…1100110010010011010
322022210010010111212012
41101012223212102122
52411322301230213
6104001213345522
76202023550142
oct1210653462232
9268703114765
1087085180058
1133a2934a798
1214a647982a2
13829ac92b56
144301b49922
1523ea5114a8
hex1446ae649a

87085180058 has 4 divisors (see below), whose sum is σ = 130627770090. Its totient is φ = 43542590028.

The previous prime is 87085180031. The next prime is 87085180081. The reversal of 87085180058 is 85008158078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85008158078 = 242504079039.

It can be written as a sum of positive squares in only one way, i.e., 49300429369 + 37784750689 = 222037^2 + 194383^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87085179988 and 87085180015.

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 as a sum of consecutive naturals, namely, 21771295013 + ... + 21771295016.

Almost surely, 287085180058 is an apocalyptic number.

87085180058 is a deficient number, since it is larger than the sum of its proper divisors (43542590032).

87085180058 is a wasteful number, since it uses less digits than its factorization.

87085180058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43542590031.

The product of its (nonzero) digits is 716800, while the sum is 50.

The spelling of 87085180058 in words is "eighty-seven billion, eighty-five million, one hundred eighty thousand, fifty-eight".

Divisors: 1 2 43542590029 87085180058