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549484769 = 1928920251
BaseRepresentation
bin100000110000000…
…111100011100001
31102021221201101202
4200300013203201
52111132003034
6130305210545
716421354261
oct4060074341
91367851352
10549484769
11262196049
12134030a55
1389abcb22
1452d977a1
153339047e
hex20c078e1

549484769 has 4 divisors (see below), whose sum is σ = 578405040. Its totient is φ = 520564500.

The previous prime is 549484757. The next prime is 549484777. The reversal of 549484769 is 967484945.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 549484769 - 24 = 549484753 is a prime.

It is a super-2 number, since 2×5494847692 = 603867022725966722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549484729) 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 3 ways as a sum of consecutive naturals, for example, 14460107 + ... + 14460144.

It is an arithmetic number, because the mean of its divisors is an integer number (144601260).

Almost surely, 2549484769 is an apocalyptic number.

It is an amenable number.

549484769 is a deficient number, since it is larger than the sum of its proper divisors (28920271).

549484769 is a wasteful number, since it uses less digits than its factorization.

549484769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28920270.

The product of its digits is 8709120, while the sum is 56.

The square root of 549484769 is about 23441.0914634963. The cubic root of 549484769 is about 819.0653484164.

The spelling of 549484769 in words is "five hundred forty-nine million, four hundred eighty-four thousand, seven hundred sixty-nine".

Divisors: 1 19 28920251 549484769