Search a number
-
+
10311442 = 213737633
BaseRepresentation
bin100111010101…
…011100010010
3201101212122021
4213111130102
510114431232
61005002054
7153434341
oct47253422
921355567
1010311442
115903159
12355332a
1321a055b
141525b58
15d8a397
hex9d5712

10311442 has 8 divisors (see below), whose sum is σ = 15580476. Its totient is φ = 5117952.

The previous prime is 10311439. The next prime is 10311449. The reversal of 10311442 is 24411301.

10311442 is digitally balanced in base 2, 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 2 ways, for example, as 10233601 + 77841 = 3199^2 + 279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×103114422 = 212651672238728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10311449) 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, 18543 + ... + 19090.

Almost surely, 210311442 is an apocalyptic number.

10311442 is a deficient number, since it is larger than the sum of its proper divisors (5269034).

10311442 is a wasteful number, since it uses less digits than its factorization.

10311442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37772.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10311442 is about 3211.1434100644. The cubic root of 10311442 is about 217.6572483320.

Adding to 10311442 its reverse (24411301), we get a palindrome (34722743).

The spelling of 10311442 in words is "ten million, three hundred eleven thousand, four hundred forty-two".

Divisors: 1 2 137 274 37633 75266 5155721 10311442