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10311394 = 25155697
BaseRepresentation
bin100111010101…
…011011100010
3201101212120111
4213111123202
510114431034
61005001534
7153434242
oct47253342
921355514
1010311394
115903115
1235532aa
1321a0522
141525b22
15d8a364
hex9d56e2

10311394 has 4 divisors (see below), whose sum is σ = 15467094. Its totient is φ = 5155696.

The previous prime is 10311347. The next prime is 10311397. The reversal of 10311394 is 49311301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49311301 = 133793177.

It can be written as a sum of positive squares in only one way, i.e., 7767369 + 2544025 = 2787^2 + 1595^2 .

It is not an unprimeable number, because it can be changed into a prime (10311397) 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 as a sum of consecutive naturals, namely, 2577847 + ... + 2577850.

Almost surely, 210311394 is an apocalyptic number.

10311394 is a deficient number, since it is larger than the sum of its proper divisors (5155700).

10311394 is an equidigital number, since it uses as much as digits as its factorization.

10311394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155699.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 10311394 is about 3211.1359360824. The cubic root of 10311394 is about 217.6569105983.

Adding to 10311394 its reverse (49311301), we get a palindrome (59622695).

The spelling of 10311394 in words is "ten million, three hundred eleven thousand, three hundred ninety-four".

Divisors: 1 2 5155697 10311394