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66630082 = 21031811787
BaseRepresentation
bin1111111000101…
…1000111000010
311122101011021211
43332023013002
5114024130312
610340040334
71436226541
oct376130702
9148334254
1066630082
113467a192
121a3930aa
1310a5b9ac
148bc6158
155cb23a7
hex3f8b1c2

66630082 has 16 divisors (see below), whose sum is σ = 101529792. Its totient is φ = 32790960.

The previous prime is 66630079. The next prime is 66630097. The reversal of 66630082 is 28003666.

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, 36393 + ... + 38179.

It is an arithmetic number, because the mean of its divisors is an integer number (6345612).

Almost surely, 266630082 is an apocalyptic number.

66630082 is a deficient number, since it is larger than the sum of its proper divisors (34899710).

66630082 is a wasteful number, since it uses less digits than its factorization.

66630082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66630082 is about 8162.7251576909. The cubic root of 66630082 is about 405.4059476888.

The spelling of 66630082 in words is "sixty-six million, six hundred thirty thousand, eighty-two".

Divisors: 1 2 103 181 206 362 1787 3574 18643 37286 184061 323447 368122 646894 33315041 66630082