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66079008 = 25324792
BaseRepresentation
bin1111110000010…
…0100100100000
311121100011100200
43330010210200
5113404012013
610320145200
71431443112
oct374044440
9147304320
1066079008
1134333156
121a168200
13108c7c08
148ac13b2
155c03e73
hex3f04920

66079008 has 54 divisors (see below), whose sum is σ = 188305299. Its totient is φ = 21980352.

The previous prime is 66079007. The next prime is 66079031. The reversal of 66079008 is 80097066.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 33039504 + 33039504 = 5748^2 + 5748^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=5748.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (66079007) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 137713 + ... + 138191.

Almost surely, 266079008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66079008

66079008 is an abundant number, since it is smaller than the sum of its proper divisors (122226291).

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

66079008 is an equidigital number, since it uses as much as digits as its factorization.

66079008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 66079008 is about 8128.8995565206. The cubic root of 66079008 is about 404.2851954813.

The spelling of 66079008 in words is "sixty-six million, seventy-nine thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 479 958 1437 1916 2874 3832 4311 5748 7664 8622 11496 15328 17244 22992 34488 45984 68976 137952 229441 458882 688323 917764 1376646 1835528 2064969 2753292 3671056 4129938 5506584 7342112 8259876 11013168 16519752 22026336 33039504 66079008