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66030076 = 2279832399
BaseRepresentation
bin1111101111100…
…0100111111100
311121020200020101
43323320213330
5113400430301
610315130444
71431150340
oct373704774
9147220211
1066030076
11342aa412
121a143a24
13108ab868
148aab620
155be4701
hex3ef89fc

66030076 has 24 divisors (see below), whose sum is σ = 132249600. Its totient is φ = 28258032.

The previous prime is 66030053. The next prime is 66030101. The reversal of 66030076 is 67003066.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26325 + ... + 28723.

It is an arithmetic number, because the mean of its divisors is an integer number (5510400).

Almost surely, 266030076 is an apocalyptic number.

It is an amenable number.

66030076 is an abundant number, since it is smaller than the sum of its proper divisors (66219524).

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

66030076 is a wasteful number, since it uses less digits than its factorization.

66030076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393 (or 3391 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 66030076 is about 8125.8892436459. The cubic root of 66030076 is about 404.1853787678.

The spelling of 66030076 in words is "sixty-six million, thirty thousand, seventy-six".

Divisors: 1 2 4 7 14 28 983 1966 2399 3932 4798 6881 9596 13762 16793 27524 33586 67172 2358217 4716434 9432868 16507519 33015038 66030076