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10921532485 = 510121626797
BaseRepresentation
bin10100010101111100…
…10101110001000101
31001012010210100001011
422022332111301011
5134331403014420
65003422202221
7534434331403
oct121276256105
931163710034
1010921532485
1146a4a14006
122149723371
1310508b2976
147586c6473
1543dc3e95a
hex28af95c45

10921532485 has 8 divisors (see below), whose sum is σ = 13235600376. Its totient is φ = 8650718400.

The previous prime is 10921532483. The next prime is 10921532509. The reversal of 10921532485 is 58423512901.

It is a happy number.

10921532485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 873675364 + 10047857121 = 29558^2 + 100239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10921532485 - 21 = 10921532483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10921532483) 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, 10812894 + ... + 10813903.

It is an arithmetic number, because the mean of its divisors is an integer number (1654450047).

Almost surely, 210921532485 is an apocalyptic number.

It is an amenable number.

10921532485 is a deficient number, since it is larger than the sum of its proper divisors (2314067891).

10921532485 is a wasteful number, since it uses less digits than its factorization.

10921532485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21626903.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 10921532485 in words is "ten billion, nine hundred twenty-one million, five hundred thirty-two thousand, four hundred eighty-five".

Divisors: 1 5 101 505 21626797 108133985 2184306497 10921532485