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549029664 = 2534211817
BaseRepresentation
bin100000101110011…
…000011100100000
31102021002121010000
4200232120130200
52111022422124
6130251340000
716414450401
oct4056303440
91367077100
10549029664
11261a05127
12133a51600
1389990931
1452cb99a8
15333006c9
hex20b98720

549029664 has 60 divisors (see below), whose sum is σ = 1614688614. Its totient is φ = 183009024.

The previous prime is 549029641. The next prime is 549029669. The reversal of 549029664 is 466920945.

It can be written as a sum of positive squares in only one way, i.e., 471237264 + 77792400 = 21708^2 + 8820^2 .

It is not an unprimeable number, because it can be changed into a prime (549029669) 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 9 ways as a sum of consecutive naturals, for example, 103317 + ... + 108500.

Almost surely, 2549029664 is an apocalyptic number.

549029664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

549029664 is an abundant number, since it is smaller than the sum of its proper divisors (1065658950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549029664 is a wasteful number, since it uses less digits than its factorization.

549029664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211839 (or 211822 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 549029664 is about 23431.3820335037. The cubic root of 549029664 is about 818.8391585287.

The spelling of 549029664 in words is "five hundred forty-nine million, twenty-nine thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 864 1296 2592 211817 423634 635451 847268 1270902 1694536 1906353 2541804 3389072 3812706 5083608 5719059 6778144 7625412 10167216 11438118 15250824 17157177 20334432 22876236 30501648 34314354 45752472 61003296 68628708 91504944 137257416 183009888 274514832 549029664