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66745062 = 23219195161
BaseRepresentation
bin1111111010011…
…1001011100110
311122121000000100
43332213023212
5114041320222
610342324530
71440216006
oct376471346
9148530010
1066745062
113474860a
121a429746
1310a9c127
148c16006
155cd64ac
hex3fa72e6

66745062 has 24 divisors (see below), whose sum is σ = 152226360. Its totient is φ = 21077280.

The previous prime is 66745033. The next prime is 66745069. The reversal of 66745062 is 26054766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66745069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97239 + ... + 97922.

It is an arithmetic number, because the mean of its divisors is an integer number (6342765).

Almost surely, 266745062 is an apocalyptic number.

66745062 is an abundant number, since it is smaller than the sum of its proper divisors (85481298).

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

66745062 is a wasteful number, since it uses less digits than its factorization.

66745062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195188 (or 195185 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 66745062 is about 8169.7651129026. The cubic root of 66745062 is about 405.6390095296.

The spelling of 66745062 in words is "sixty-six million, seven hundred forty-five thousand, sixty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 195161 390322 585483 1170966 1756449 3512898 3708059 7416118 11124177 22248354 33372531 66745062