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5311135231 = 151147123911
BaseRepresentation
bin1001111001001000…
…10111110111111111
3111201010211121212021
410330210113313333
541334122311411
62235004021011
7245420622163
oct47444276777
914633747767
105311135231
112285aa7566
121042831767
13668457b8c
14385532ca3
15211414a71
hex13c917dff

5311135231 has 8 divisors (see below), whose sum is σ = 5350166528. Its totient is φ = 5272155000.

The previous prime is 5311135217. The next prime is 5311135243. The reversal of 5311135231 is 1325311135.

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 5311135231 - 217 = 5311004159 is a prime.

It is a super-2 number, since 2×53111352312 = 56416314883938846722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5311135196 and 5311135205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311135831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210166 + ... + 234076.

It is an arithmetic number, because the mean of its divisors is an integer number (668770816).

Almost surely, 25311135231 is an apocalyptic number.

5311135231 is a deficient number, since it is larger than the sum of its proper divisors (39031297).

5311135231 is a wasteful number, since it uses less digits than its factorization.

5311135231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25533.

The product of its digits is 1350, while the sum is 25.

The square root of 5311135231 is about 72877.5358461028. The cubic root of 5311135231 is about 1744.7335801229.

Adding to 5311135231 its reverse (1325311135), we get a palindrome (6636446366).

The spelling of 5311135231 in words is "five billion, three hundred eleven million, one hundred thirty-five thousand, two hundred thirty-one".

Divisors: 1 151 1471 23911 222121 3610561 35173081 5311135231