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10721104523 = 53317638123
BaseRepresentation
bin10011111110000011…
…10001001010001011
31000200011122112120022
421333001301022023
5133424100321043
64531502251055
7526451612333
oct117701611213
930604575508
1010721104523
114601869568
1220b2586a8b
13101b20893c
14739c320c3
1542b34d868
hex27f07128b

10721104523 has 8 divisors (see below), whose sum is σ = 10957865328. Its totient is φ = 10485620704.

The previous prime is 10721104507. The next prime is 10721104579. The reversal of 10721104523 is 32540112701.

10721104523 is digitally balanced in base 2, 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 10721104523 - 24 = 10721104507 is a prime.

It is a super-2 number, since 2×107211045232 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10721104492 and 10721104501.

It is not an unprimeable number, because it can be changed into a prime (10721104123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302261 + ... + 335862.

It is an arithmetic number, because the mean of its divisors is an integer number (1369733166).

Almost surely, 210721104523 is an apocalyptic number.

10721104523 is a deficient number, since it is larger than the sum of its proper divisors (236760805).

10721104523 is an equidigital number, since it uses as much as digits as its factorization.

10721104523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638493.

The product of its (nonzero) digits is 1680, while the sum is 26.

The spelling of 10721104523 in words is "ten billion, seven hundred twenty-one million, one hundred four thousand, five hundred twenty-three".

Divisors: 1 53 317 16801 638123 33820519 202284991 10721104523