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5281364929 = 726732
BaseRepresentation
bin1001110101100101…
…10011101111000001
3111122001211010200111
410322302303233001
541304012134204
62232021551321
7244606601251
oct47262635701
914561733614
105281364929
112270213705
121034875541
13662233609
143815c3961
1520d9d3d04
hex13acb3bc1

5281364929 has 3 divisors (see below), whose sum is σ = 5281437603. Its totient is φ = 5281292256.

The previous prime is 5281364911. The next prime is 5281364951. The reversal of 5281364929 is 9294631825.

The square root of 5281364929 is 72673.

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 can be written as a sum of positive squares in only one way, i.e., 2434929025 + 2846435904 = 49345^2 + 53352^2 .

It is not a de Polignac number, because 5281364929 - 225 = 5247810497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5281364969) 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, 36337 + ... + 109009.

It is an arithmetic number, because the mean of its divisors is an integer number (1760479201).

Almost surely, 25281364929 is an apocalyptic number.

5281364929 is the 72673-rd square number.

5281364929 is the 36337-th centered octagonal number.

It is an amenable number.

5281364929 is a deficient number, since it is larger than the sum of its proper divisors (72674).

5281364929 is an frugal number, since it uses more digits than its factorization.

5281364929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145346 (or 72673 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The cubic root of 5281364929 is about 1741.4675742214.

Multiplying 5281364929 by its sum of digits (49), we get a square (258786881521 = 5087112).

The spelling of 5281364929 in words is "five billion, two hundred eighty-one million, three hundred sixty-four thousand, nine hundred twenty-nine".

Divisors: 1 72673 5281364929