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66214033 = 237573803
BaseRepresentation
bin1111110010010…
…1100010010001
311121121000120121
43330211202101
5113422322113
610323110241
71432544554
oct374454221
9147530517
1066214033
1134415646
121a212381
1310944502
148b1869b
155c2de8d
hex3f25891

66214033 has 8 divisors (see below), whose sum is σ = 69202368. Its totient is φ = 63234864.

The previous prime is 66214021. The next prime is 66214063. The reversal of 66214033 is 33041266.

66214033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-66214033 is a prime.

It is a super-2 number, since 2×662140332 = 8768596332250178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66213989 and 66214007.

It is not an unprimeable number, because it can be changed into a prime (66214003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15510 + ... + 19312.

It is an arithmetic number, because the mean of its divisors is an integer number (8650296).

Almost surely, 266214033 is an apocalyptic number.

It is an amenable number.

66214033 is a deficient number, since it is larger than the sum of its proper divisors (2988335).

66214033 is a wasteful number, since it uses less digits than its factorization.

66214033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 66214033 is about 8137.2005628472. The cubic root of 66214033 is about 404.5603785307.

Adding to 66214033 its reverse (33041266), we get a palindrome (99255299).

The spelling of 66214033 in words is "sixty-six million, two hundred fourteen thousand, thirty-three".

Divisors: 1 23 757 3803 17411 87469 2878871 66214033