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6464501023 = 6911935393
BaseRepresentation
bin1100000010101000…
…00111010100011111
3121200112002200021211
412001110013110133
5101214403013043
62545244405251
7316124231521
oct60124072437
917615080254
106464501023
112818051332
121304b46827
137c03a1c46
144547a3a11
1527c7dca9d
hex18150751f

6464501023 has 4 divisors (see below), whose sum is σ = 6465443328. Its totient is φ = 6463558720.

The previous prime is 6464501011. The next prime is 6464501059. The reversal of 6464501023 is 3201054646.

6464501023 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6464501023 - 213 = 6464492831 is a prime.

It is a super-3 number, since 3×64645010233 (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464501093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460786 + ... + 474607.

It is an arithmetic number, because the mean of its divisors is an integer number (1616360832).

Almost surely, 26464501023 is an apocalyptic number.

6464501023 is a deficient number, since it is larger than the sum of its proper divisors (942305).

6464501023 is an equidigital number, since it uses as much as digits as its factorization.

6464501023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942304.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 6464501023 is about 80402.1207618307. The cubic root of 6464501023 is about 1862.8519303615.

Adding to 6464501023 its reverse (3201054646), we get a palindrome (9665555669).

The spelling of 6464501023 in words is "six billion, four hundred sixty-four million, five hundred one thousand, twenty-three".

Divisors: 1 6911 935393 6464501023