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52489169 = 316472617
BaseRepresentation
bin1100100000111…
…0101111010001
310122202201121022
43020032233101
5101414123134
65113005225
71205102435
oct310165721
9118681538
1052489169
11276a0987
12156b3815
13ab4a3a5
146d849c5
15491c52e
hex320ebd1

52489169 has 8 divisors (see below), whose sum is σ = 54286848. Its totient is φ = 50698080.

The previous prime is 52489147. The next prime is 52489181. The reversal of 52489169 is 96198425.

52489169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52489169 - 28 = 52488913 is a prime.

It is a super-2 number, since 2×524891692 = 5510225724621122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52489069) 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, 18749 + ... + 21365.

It is an arithmetic number, because the mean of its divisors is an integer number (6785856).

Almost surely, 252489169 is an apocalyptic number.

It is an amenable number.

52489169 is a deficient number, since it is larger than the sum of its proper divisors (1797679).

52489169 is a wasteful number, since it uses less digits than its factorization.

52489169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295.

The product of its digits is 155520, while the sum is 44.

The square root of 52489169 is about 7244.9409245349. The cubic root of 52489169 is about 374.4178677560.

The spelling of 52489169 in words is "fifty-two million, four hundred eighty-nine thousand, one hundred sixty-nine".

Divisors: 1 31 647 2617 20057 81127 1693199 52489169