Search a number
-
+
87158075055 = 355810538337
BaseRepresentation
bin101000100101100000…
…1101010111010101111
322022222012021221222220
41101023001222322233
52411444431400210
6104012340010423
76203600262042
oct1211301527257
9268865257886
1087158075055
1133a66508897
1214a85090a13
1382b010629c
14430b6c2c59
152401b0ec70
hex144b06aeaf

87158075055 has 8 divisors (see below), whose sum is σ = 139452920112. Its totient is φ = 46484306688.

The previous prime is 87158075051. The next prime is 87158075089. The reversal of 87158075055 is 55057085178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87158075055 - 22 = 87158075051 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 87158074989 and 87158075007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87158075051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2905269154 + ... + 2905269183.

It is an arithmetic number, because the mean of its divisors is an integer number (17431615014).

Almost surely, 287158075055 is an apocalyptic number.

87158075055 is a deficient number, since it is larger than the sum of its proper divisors (52294845057).

87158075055 is a wasteful number, since it uses less digits than its factorization.

87158075055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5810538345.

The product of its (nonzero) digits is 1960000, while the sum is 51.

The spelling of 87158075055 in words is "eighty-seven billion, one hundred fifty-eight million, seventy-five thousand, fifty-five".

Divisors: 1 3 5 15 5810538337 17431615011 29052691685 87158075055