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53171131 = 1335911393
BaseRepresentation
bin1100101011010…
…1001110111011
310201001101002011
43022311032323
5102102434011
65135350351
71213642606
oct312651673
9121041064
1053171131
1128017292
12159823b7
13b028910
1470c133d
154a04621
hex32b53bb

53171131 has 8 divisors (see below), whose sum is σ = 57425760. Its totient is φ = 48940032.

The previous prime is 53171093. The next prime is 53171143. The reversal of 53171131 is 13117135.

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 53171131 - 225 = 19616699 is a prime.

It is a super-2 number, since 2×531711312 = 5654338343638322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53171161) 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, 1030 + ... + 10363.

It is an arithmetic number, because the mean of its divisors is an integer number (7178220).

Almost surely, 253171131 is an apocalyptic number.

53171131 is a deficient number, since it is larger than the sum of its proper divisors (4254629).

53171131 is a wasteful number, since it uses less digits than its factorization.

53171131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11765.

The product of its digits is 315, while the sum is 22.

The square root of 53171131 is about 7291.8537423621. The cubic root of 53171131 is about 376.0324284503.

Adding to 53171131 its reverse (13117135), we get a palindrome (66288266).

The spelling of 53171131 in words is "fifty-three million, one hundred seventy-one thousand, one hundred thirty-one".

Divisors: 1 13 359 4667 11393 148109 4090087 53171131