Search a number
-
+
58921212985 = 5172923903129
BaseRepresentation
bin110110110111111110…
…100101110000111001
312122002022122202011121
4312313332211300321
51431132312303420
643022410025241
74154060022025
oct666776456071
9178068582147
1058921212985
1122a96541448
12b504718221
1357300c5a8b
142bcd4b7385
1517ecbac2aa
hexdb7fa5c39

58921212985 has 16 divisors (see below), whose sum is σ = 77446141200. Its totient is φ = 42834405376.

The previous prime is 58921212971. The next prime is 58921212991.

58921212985 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 4192821504 + 54728391481 = 64752^2 + 233941^2 .

It is a cyclic number.

It is not a de Polignac number, because 58921212985 - 29 = 58921212473 is a prime.

It is a super-2 number, since 2×589212129852 (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11949100 + ... + 11954029.

It is an arithmetic number, because the mean of its divisors is an integer number (4840383825).

Almost surely, 258921212985 is an apocalyptic number.

It is an amenable number.

58921212985 is a deficient number, since it is larger than the sum of its proper divisors (18524928215).

58921212985 is a wasteful number, since it uses less digits than its factorization.

58921212985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23903180.

The product of its digits is 1036800, while the sum is 52.

The spelling of 58921212985 in words is "fifty-eight billion, nine hundred twenty-one million, two hundred twelve thousand, nine hundred eighty-five".

Divisors: 1 5 17 29 85 145 493 2465 23903129 119515645 406353193 693190741 2031765965 3465953705 11784242597 58921212985