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5311625261 = 28134695449
BaseRepresentation
bin1001111001001100…
…01111100000101101
3111201011202112001112
410330212033200231
541334234002021
62235022321405
7245425032635
oct47446174055
914634675045
105311625261
112286301748
121042a29265
13668599c37
1438561d6c5
152114aed5b
hex13c98f82d

5311625261 has 8 divisors (see below), whose sum is σ = 5333043000. Its totient is φ = 5290225920.

The previous prime is 5311625251. The next prime is 5311625269. The reversal of 5311625261 is 1625261135.

It can be written as a sum of positive squares in 4 ways, for example, as 16152361 + 5295472900 = 4019^2 + 72770^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5311625261 - 210 = 5311624237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311625269) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 972065 + ... + 977513.

It is an arithmetic number, because the mean of its divisors is an integer number (666630375).

Almost surely, 25311625261 is an apocalyptic number.

It is an amenable number.

5311625261 is a deficient number, since it is larger than the sum of its proper divisors (21417739).

5311625261 is a wasteful number, since it uses less digits than its factorization.

5311625261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9199.

The product of its digits is 10800, while the sum is 32.

The square root of 5311625261 is about 72880.8977784989. The cubic root of 5311625261 is about 1744.7872375467.

Adding to 5311625261 its reverse (1625261135), we get a palindrome (6936886396).

The spelling of 5311625261 in words is "five billion, three hundred eleven million, six hundred twenty-five thousand, two hundred sixty-one".

Divisors: 1 281 3469 5449 974789 1531169 18902581 5311625261