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10031306665 = 56729944199
BaseRepresentation
bin10010101011110100…
…11001011110101001
3221220002200011210111
421111322121132221
5131021003303130
64335221414321
7503404462012
oct112572313651
927802604714
1010031306665
114288458196
121b3b56a3a1
13c3b32c123
146b2392009
153da9e402a
hex255e997a9

10031306665 has 8 divisors (see below), whose sum is σ = 12217233600. Its totient is φ = 7905268272.

The previous prime is 10031306657. The next prime is 10031306669. The reversal of 10031306665 is 56660313001.

10031306665 is digitally balanced in base 3, 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 not a de Polignac number, because 10031306665 - 23 = 10031306657 is a prime.

It is a super-2 number, since 2×100313066652 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10031306669) 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, 14971765 + ... + 14972434.

It is an arithmetic number, because the mean of its divisors is an integer number (1527154200).

Almost surely, 210031306665 is an apocalyptic number.

It is an amenable number.

10031306665 is a deficient number, since it is larger than the sum of its proper divisors (2185926935).

10031306665 is an equidigital number, since it uses as much as digits as its factorization.

10031306665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29944271.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 10031306665 its reverse (56660313001), we get a palindrome (66691619666).

The spelling of 10031306665 in words is "ten billion, thirty-one million, three hundred six thousand, six hundred sixty-five".

Divisors: 1 5 67 335 29944199 149720995 2006261333 10031306665