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53108231 = 11339901
BaseRepresentation
bin1100101010010…
…1111000000111
310200221011210112
43022211320013
5102043430411
65134143235
71213261331
oct312457007
9120834715
1053108231
1127a84000
1215951b1b
13b0060b7
1470a6451
1549e0b8b
hex32a5e07

53108231 has 8 divisors (see below), whose sum is σ = 58416528. Its totient is φ = 48279000.

The previous prime is 53108197. The next prime is 53108257. The reversal of 53108231 is 13280135.

53108231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53108231 - 214 = 53091847 is a prime.

It is a super-2 number, since 2×531082312 = 5640968399898722, 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 = 53108197 and 53108206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53108281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18620 + ... + 21281.

It is an arithmetic number, because the mean of its divisors is an integer number (7302066).

Almost surely, 253108231 is an apocalyptic number.

53108231 is a deficient number, since it is larger than the sum of its proper divisors (5308297).

53108231 is an equidigital number, since it uses as much as digits as its factorization.

53108231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39934 (or 39912 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 53108231 is about 7287.5394338556. The cubic root of 53108231 is about 375.8840912344.

Adding to 53108231 its reverse (13280135), we get a palindrome (66388366).

The spelling of 53108231 in words is "fifty-three million, one hundred eight thousand, two hundred thirty-one".

Divisors: 1 11 121 1331 39901 438911 4828021 53108231