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5481197291 = 591494211481
BaseRepresentation
bin1010001101011010…
…00110111011101011
3112010222211200011002
411012231012323223
542211141303131
62303521025215
7252554260013
oct50655067353
915128750132
105481197291
112362aa1719
12108b78520b
1369475c50b
1439dd60c43
152213086cb
hex146b46eeb

5481197291 has 16 divisors (see below), whose sum is σ = 5628636000. Its totient is φ = 5335814400.

The previous prime is 5481197261. The next prime is 5481197317. The reversal of 5481197291 is 1927911845.

5481197291 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5481197291 - 210 = 5481196267 is a prime.

It is a super-3 number, since 3×54811972913 (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5481197201) 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 15 ways as a sum of consecutive naturals, for example, 3700271 + ... + 3701751.

It is an arithmetic number, because the mean of its divisors is an integer number (351789750).

Almost surely, 25481197291 is an apocalyptic number.

5481197291 is a deficient number, since it is larger than the sum of its proper divisors (147438709).

5481197291 is a wasteful number, since it uses less digits than its factorization.

5481197291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110.

The product of its digits is 181440, while the sum is 47.

The square root of 5481197291 is about 74035.1085026557. The cubic root of 5481197291 is about 1763.1603524991.

The spelling of 5481197291 in words is "five billion, four hundred eighty-one million, one hundred ninety-seven thousand, two hundred ninety-one".

Divisors: 1 59 149 421 1481 8791 24839 62729 87379 220669 623501 3701011 13019471 36786559 92901649 5481197291