Search a number
-
+
10748821 = 29212781
BaseRepresentation
bin101001000000…
…001110010101
3202020002121111
4221000032111
510222430241
61022215021
7160235446
oct51001625
922202544
1010748821
116081826
123724471
1322c4665
1415db2cd
15e24c81
hexa40395

10748821 has 6 divisors (see below), whose sum is σ = 11133122. Its totient is φ = 10377360.

The previous prime is 10748809. The next prime is 10748827. The reversal of 10748821 is 12884701.

10748821 is digitally balanced in base 3, 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 3 ways, for example, as 2852721 + 7896100 = 1689^2 + 2810^2 .

It is not a de Polignac number, because 10748821 - 27 = 10748693 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 (10748827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5550 + ... + 7231.

Almost surely, 210748821 is an apocalyptic number.

It is an amenable number.

10748821 is a deficient number, since it is larger than the sum of its proper divisors (384301).

10748821 is an equidigital number, since it uses as much as digits as its factorization.

10748821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12839 (or 12810 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 10748821 is about 3278.5394614066. The cubic root of 10748821 is about 220.6921794367.

The spelling of 10748821 in words is "ten million, seven hundred forty-eight thousand, eight hundred twenty-one".

Divisors: 1 29 841 12781 370649 10748821