Search a number
-
+
10252442 = 25126221
BaseRepresentation
bin100111000111…
…000010011010
3201021212201002
4213013002122
510111034232
61003425002
7153100334
oct47070232
921255632
1010252442
1158728a2
123525162
13217c745
14150c454
15d77b62
hex9c709a

10252442 has 4 divisors (see below), whose sum is σ = 15378666. Its totient is φ = 5126220.

The previous prime is 10252433. The next prime is 10252477. The reversal of 10252442 is 24425201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24425201 = 43156671.

It can be written as a sum of positive squares in only one way, i.e., 7392961 + 2859481 = 2719^2 + 1691^2 .

It is a super-2 number, since 2×102524422 = 210225133926728, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2563109 + ... + 2563112.

Almost surely, 210252442 is an apocalyptic number.

10252442 is a deficient number, since it is larger than the sum of its proper divisors (5126224).

10252442 is an equidigital number, since it uses as much as digits as its factorization.

10252442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126223.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 10252442 is about 3201.9434723305. The cubic root of 10252442 is about 217.2413236890.

Adding to 10252442 its reverse (24425201), we get a palindrome (34677643).

The spelling of 10252442 in words is "ten million, two hundred fifty-two thousand, four hundred forty-two".

Divisors: 1 2 5126221 10252442