Search a number
-
+
10312857 = 321145873
BaseRepresentation
bin100111010101…
…110010011001
3201101221120200
4213111302121
510120002412
61005012413
7153441432
oct47256231
921357520
1010312857
115904225
123554109
1321a10a9
141526489
15d8a9dc
hex9d5c99

10312857 has 6 divisors (see below), whose sum is σ = 14896362. Its totient is φ = 6875232.

The previous prime is 10312823. The next prime is 10312867. The reversal of 10312857 is 75821301.

10312857 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 only one way, i.e., 8433216 + 1879641 = 2904^2 + 1371^2 .

It is not a de Polignac number, because 10312857 - 215 = 10280089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10312857.

It is not an unprimeable number, because it can be changed into a prime (10312867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572928 + ... + 572945.

It is an arithmetic number, because the mean of its divisors is an integer number (2482727).

Almost surely, 210312857 is an apocalyptic number.

It is an amenable number.

10312857 is a deficient number, since it is larger than the sum of its proper divisors (4583505).

10312857 is a wasteful number, since it uses less digits than its factorization.

10312857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145879 (or 1145876 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 10312857 is about 3211.3637290098. The cubic root of 10312857 is about 217.6672039690.

The spelling of 10312857 in words is "ten million, three hundred twelve thousand, eight hundred fifty-seven".

Divisors: 1 3 9 1145873 3437619 10312857