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66047552 = 263492957
BaseRepresentation
bin1111101111110…
…0111001000000
311121021120012122
43323330321000
5113402010202
610315343412
71431252314
oct373747100
9147246178
1066047552
113431155a
121a151b68
13108b67bc
148ab3b44
155be99a2
hex3efce40

66047552 has 28 divisors (see below), whose sum is σ = 131483100. Its totient is φ = 32918016.

The previous prime is 66047543. The next prime is 66047561. The reversal of 66047552 is 25574066.

It is an interprime number because it is at equal distance from previous prime (66047543) and next prime (66047561).

It can be written as a sum of positive squares in 2 ways, for example, as 29855296 + 36192256 = 5464^2 + 6016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20858 + ... + 23814.

It is an arithmetic number, because the mean of its divisors is an integer number (4695825).

Almost surely, 266047552 is an apocalyptic number.

It is an amenable number.

66047552 is a deficient number, since it is larger than the sum of its proper divisors (65435548).

66047552 is a wasteful number, since it uses less digits than its factorization.

66047552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 66047552 is about 8126.9645009684. The cubic root of 66047552 is about 404.2210338361.

The spelling of 66047552 in words is "sixty-six million, forty-seven thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 349 698 1396 2792 2957 5584 5914 11168 11828 22336 23656 47312 94624 189248 1031993 2063986 4127972 8255944 16511888 33023776 66047552