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5181552289 = 719832
BaseRepresentation
bin1001101001101100…
…00011011010100001
3111101010000010111001
410310312003122201
541102434133124
62214054352001
7242255316304
oct46466033241
914333003431
105181552289
11221993aa21
12100735b601
13647657194
14372240b3b
15204d69b44
hex134d836a1

5181552289 has 3 divisors (see below), whose sum is σ = 5181624273. Its totient is φ = 5181480306.

The previous prime is 5181552283. The next prime is 5181552307. The reversal of 5181552289 is 9822551815.

The square root of 5181552289 is 71983.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 5181552289 - 231 = 3034068641 is a prime.

It is a super-2 number, since 2×51815522892 = 53696968247282279042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5181552283) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35992 + ... + 107974.

It is an arithmetic number, because the mean of its divisors is an integer number (1727208091).

Almost surely, 25181552289 is an apocalyptic number.

5181552289 is the 71983-rd square number.

5181552289 is the 35992-nd centered octagonal number.

It is an amenable number.

5181552289 is a deficient number, since it is larger than the sum of its proper divisors (71984).

5181552289 is an frugal number, since it uses more digits than its factorization.

5181552289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143966 (or 71983 counting only the distinct ones).

The product of its digits is 288000, while the sum is 46.

The cubic root of 5181552289 is about 1730.4270487285.

The spelling of 5181552289 in words is "five billion, one hundred eighty-one million, five hundred fifty-two thousand, two hundred eighty-nine".

Divisors: 1 71983 5181552289