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10288621 = 717312789
BaseRepresentation
bin100111001111…
…110111101101
3201100201100001
4213033313231
510113213441
61004304301
7153310660
oct47176755
921321301
1010288621
115897aa2
123542091
132193055
14151b6d7
15d83731
hex9cfded

10288621 has 16 divisors (see below), whose sum is σ = 12856320. Its totient is φ = 8029440.

The previous prime is 10288601. The next prime is 10288631. The reversal of 10288621 is 12688201.

10288621 = T193 + T194 + ... + T409.

It is not a de Polignac number, because 10288621 - 25 = 10288589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10288621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10288601) 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 15 ways as a sum of consecutive naturals, for example, 2295 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (803520).

Almost surely, 210288621 is an apocalyptic number.

It is an amenable number.

10288621 is a deficient number, since it is larger than the sum of its proper divisors (2567699).

10288621 is a wasteful number, since it uses less digits than its factorization.

10288621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 10288621 is about 3207.5880346453. The cubic root of 10288621 is about 217.4965587160.

The spelling of 10288621 in words is "ten million, two hundred eighty-eight thousand, six hundred twenty-one".

Divisors: 1 7 17 31 119 217 527 2789 3689 19523 47413 86459 331891 605213 1469803 10288621