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53169331 = 737191013
BaseRepresentation
bin1100101011010…
…0110010110011
310201001021121111
43022310302303
5102102404311
65135334151
71213634425
oct312646263
9121037544
1053169331
11280159a6
1215981357
13b027b57
1470c0815
154a03d21
hex32b4cb3

53169331 has 8 divisors (see below), whose sum is σ = 54025920. Its totient is φ = 52316352.

The previous prime is 53169313. The next prime is 53169341. The reversal of 53169331 is 13396135.

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 53169331 - 25 = 53169299 is a prime.

It is a super-2 number, since 2×531693312 = 5653955517975122, 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 = 53169293 and 53169302.

It is not an unprimeable number, because it can be changed into a prime (53169341) 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, 51981 + ... + 52993.

It is an arithmetic number, because the mean of its divisors is an integer number (6753240).

Almost surely, 253169331 is an apocalyptic number.

53169331 is a deficient number, since it is larger than the sum of its proper divisors (856589).

53169331 is a wasteful number, since it uses less digits than its factorization.

53169331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its digits is 7290, while the sum is 31.

The square root of 53169331 is about 7291.7303159127. The cubic root of 53169331 is about 376.0281851325.

The spelling of 53169331 in words is "fifty-three million, one hundred sixty-nine thousand, three hundred thirty-one".

Divisors: 1 73 719 1013 52487 73949 728347 53169331