Search a number
-
+
53169284 = 2272382561
BaseRepresentation
bin1100101011010…
…0110010000100
310201001021112202
43022310302010
5102102404114
65135334032
71213634330
oct312646204
9121037482
1053169284
1128015963
1215981318
13b027b1c
1470c07c0
154a03cde
hex32b4c84

53169284 has 24 divisors (see below), whose sum is σ = 110963328. Its totient is φ = 21795840.

The previous prime is 53169269. The next prime is 53169287. The reversal of 53169284 is 48296135.

It is a happy number.

It is a super-2 number, since 2×531692842 = 5653945522145312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53169287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40637 + ... + 41924.

It is an arithmetic number, because the mean of its divisors is an integer number (4623472).

Almost surely, 253169284 is an apocalyptic number.

It is an amenable number.

53169284 is an abundant number, since it is smaller than the sum of its proper divisors (57794044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53169284 is a wasteful number, since it uses less digits than its factorization.

53169284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82595 (or 82593 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 53169284 is about 7291.7270930830. The cubic root of 53169284 is about 376.0280743335.

The spelling of 53169284 in words is "fifty-three million, one hundred sixty-nine thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 82561 165122 330244 577927 1155854 1898903 2311708 3797806 7595612 13292321 26584642 53169284