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66050949 = 3110319961
BaseRepresentation
bin1111101111110…
…1101110000101
311121021201212110
43323331232011
5113402112244
610315411233
71431265236
oct373755605
9147251773
1066050949
1134314068
121a153b19
13108b8203
148ab508d
155bea9b9
hex3efdb85

66050949 has 8 divisors (see below), whose sum is σ = 88152192. Its totient is φ = 43991840.

The previous prime is 66050947. The next prime is 66050953. The reversal of 66050949 is 94905066.

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

It is a cyclic number.

It is not a de Polignac number, because 66050949 - 21 = 66050947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66050947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6672 + ... + 13289.

It is an arithmetic number, because the mean of its divisors is an integer number (11019024).

Almost surely, 266050949 is an apocalyptic number.

It is an amenable number.

66050949 is a deficient number, since it is larger than the sum of its proper divisors (22101243).

66050949 is a wasteful number, since it uses less digits than its factorization.

66050949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21067.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 66050949 is about 8127.1734939030. The cubic root of 66050949 is about 404.2279637690.

The spelling of 66050949 in words is "sixty-six million, fifty thousand, nine hundred forty-nine".

Divisors: 1 3 1103 3309 19961 59883 22016983 66050949