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10319257 = 13793789
BaseRepresentation
bin100111010111…
…010110011001
3201102021100201
4213113112121
510120204012
61005102201
7153466204
oct47272631
921367321
1010319257
115909013
123557961
1321a3c90
14152893b
15d8c857
hex9d7599

10319257 has 4 divisors (see below), whose sum is σ = 11113060. Its totient is φ = 9525456.

The previous prime is 10319237. The next prime is 10319317. The reversal of 10319257 is 75291301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75291301 = 283266047.

It can be written as a sum of positive squares in 2 ways, for example, as 4064256 + 6255001 = 2016^2 + 2501^2 .

It is a cyclic number.

It is not a de Polignac number, because 10319257 - 27 = 10319129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10319237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396882 + ... + 396907.

It is an arithmetic number, because the mean of its divisors is an integer number (2778265).

Almost surely, 210319257 is an apocalyptic number.

It is an amenable number.

10319257 is a deficient number, since it is larger than the sum of its proper divisors (793803).

10319257 is an equidigital number, since it uses as much as digits as its factorization.

10319257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793802.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 10319257 is about 3212.3600358615. The cubic root of 10319257 is about 217.7122216278.

The spelling of 10319257 in words is "ten million, three hundred nineteen thousand, two hundred fifty-seven".

Divisors: 1 13 793789 10319257