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52154289 = 3211598929
BaseRepresentation
bin1100011011110…
…0111110110001
310122010201020100
43012330332301
5101322414124
65101503013
71202206215
oct306747661
9118121210
1052154289
1127492320
1215571a69
13aa60b35
146cd8945
1548a31c9
hex31bcfb1

52154289 has 24 divisors (see below), whose sum is σ = 83584800. Its totient is φ = 31069440.

The previous prime is 52154231. The next prime is 52154303. The reversal of 52154289 is 98245125.

52154289 is a `hidden beast` number, since 521 + 54 + 2 + 89 = 666.

It is not a de Polignac number, because 52154289 - 28 = 52154033 is a prime.

It is a super-2 number, since 2×521542892 = 5440139722191042, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52154189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1377 + ... + 10305.

It is an arithmetic number, because the mean of its divisors is an integer number (3482700).

Almost surely, 252154289 is an apocalyptic number.

52154289 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

52154289 is a deficient number, since it is larger than the sum of its proper divisors (31430511).

52154289 is a wasteful number, since it uses less digits than its factorization.

52154289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9005 (or 9002 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 52154289 is about 7221.7926444893. The cubic root of 52154289 is about 373.6199084905.

The spelling of 52154289 in words is "fifty-two million, one hundred fifty-four thousand, two hundred eighty-nine".

Divisors: 1 3 9 11 33 59 99 177 531 649 1947 5841 8929 26787 80361 98219 294657 526811 883971 1580433 4741299 5794921 17384763 52154289