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10241621 = 13787817
BaseRepresentation
bin100111000100…
…011001010101
3201021022212022
4213010121111
510110212441
61003302525
7153023645
oct47043125
921238768
1010241621
115865755
12351aa45
132177840
141508525
15d7484b
hex9c4655

10241621 has 4 divisors (see below), whose sum is σ = 11029452. Its totient is φ = 9453792.

The previous prime is 10241603. The next prime is 10241653. The reversal of 10241621 is 12614201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12614201 = 101912379.

It can be written as a sum of positive squares in 2 ways, for example, as 662596 + 9579025 = 814^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 10241621 - 26 = 10241557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10241621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10241921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393896 + ... + 393921.

It is an arithmetic number, because the mean of its divisors is an integer number (2757363).

Almost surely, 210241621 is an apocalyptic number.

It is an amenable number.

10241621 is a deficient number, since it is larger than the sum of its proper divisors (787831).

10241621 is an equidigital number, since it uses as much as digits as its factorization.

10241621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787830.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 10241621 is about 3200.2532712271. The cubic root of 10241621 is about 217.1648672411.

Adding to 10241621 its reverse (12614201), we get a palindrome (22855822).

The spelling of 10241621 in words is "ten million, two hundred forty-one thousand, six hundred twenty-one".

Divisors: 1 13 787817 10241621