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6660003049 = 71396844813
BaseRepresentation
bin1100011001111011…
…11001010011101001
3122012010222012122121
412030331321103221
5102114430044144
63020510551241
7324020043340
oct61475712351
918163865577
106660003049
112908441957
12135a508521
13821a42b0b
14472734b57
1528ea59384
hex18cf794e9

6660003049 has 8 divisors (see below), whose sum is σ = 7666191680. Its totient is φ = 5667504336.

The previous prime is 6660003041. The next prime is 6660003089. The reversal of 6660003049 is 9403000666.

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 6660003049 - 23 = 6660003041 is a prime.

It is a super-2 number, since 2×66600030492 = 88711281225378592802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6660003041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3421434 + ... + 3423379.

It is an arithmetic number, because the mean of its divisors is an integer number (958273960).

Almost surely, 26660003049 is an apocalyptic number.

It is an amenable number.

6660003049 is a deficient number, since it is larger than the sum of its proper divisors (1006188631).

6660003049 is a wasteful number, since it uses less digits than its factorization.

6660003049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844959.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 6660003049 is about 81608.8417329887. The cubic root of 6660003049 is about 1881.4447782874. Note that the first 3 decimals are identical.

The spelling of 6660003049 in words is "six billion, six hundred sixty million, three thousand, forty-nine".

Divisors: 1 7 139 973 6844813 47913691 951429007 6660003049