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66373030 = 256637303
BaseRepresentation
bin1111110100110…
…0010110100110
311121220002200101
43331030112212
5113442414110
610330334314
71434106243
oct375142646
9147802611
1066373030
1134514049
121a28a39a
131099b9a9
148b5a5ca
155c6113a
hex3f4c5a6

66373030 has 8 divisors (see below), whose sum is σ = 119471472. Its totient is φ = 26549208.

The previous prime is 66373019. The next prime is 66373031. The reversal of 66373030 is 3037366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×663730302 = 8810758222761800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66373030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66373031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3318642 + ... + 3318661.

It is an arithmetic number, because the mean of its divisors is an integer number (14933934).

Almost surely, 266373030 is an apocalyptic number.

66373030 is a deficient number, since it is larger than the sum of its proper divisors (53098442).

66373030 is a wasteful number, since it uses less digits than its factorization.

66373030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6637310.

The product of its (nonzero) digits is 6804, while the sum is 28.

The square root of 66373030 is about 8146.9644653699. The cubic root of 66373030 is about 404.8839376822.

The spelling of 66373030 in words is "sixty-six million, three hundred seventy-three thousand, thirty".

Divisors: 1 2 5 10 6637303 13274606 33186515 66373030