Search a number
-
+
10857808 = 241352201
BaseRepresentation
bin101001011010…
…110101010000
3202102122010001
4221122311100
510234422213
61024415344
7161201263
oct51326520
922378101
1010857808
1161466a5
123777554
132332150
141628cda
15e471dd
hexa5ad50

10857808 has 20 divisors (see below), whose sum is σ = 22655668. Its totient is φ = 5011200.

The previous prime is 10857757. The next prime is 10857809. The reversal of 10857808 is 80875801.

It can be written as a sum of positive squares in 2 ways, for example, as 5419584 + 5438224 = 2328^2 + 2332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10857809) 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, 25893 + ... + 26308.

Almost surely, 210857808 is an apocalyptic number.

It is an amenable number.

10857808 is an abundant number, since it is smaller than the sum of its proper divisors (11797860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10857808 is a wasteful number, since it uses less digits than its factorization.

10857808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52222 (or 52216 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 10857808 is about 3295.1188142463. The cubic root of 10857808 is about 221.4355707415.

The spelling of 10857808 in words is "ten million, eight hundred fifty-seven thousand, eight hundred eight".

Divisors: 1 2 4 8 13 16 26 52 104 208 52201 104402 208804 417608 678613 835216 1357226 2714452 5428904 10857808