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10242238 = 25121119
BaseRepresentation
bin100111000100…
…100010111110
3201021100201011
4213010202332
510110222423
61003305434
7153025516
oct47044276
921240634
1010242238
115866166
12351b27a
132177bc6
141508846
15d74b0d
hex9c48be

10242238 has 4 divisors (see below), whose sum is σ = 15363360. Its totient is φ = 5121118.

The previous prime is 10242233. The next prime is 10242241. The reversal of 10242238 is 83224201.

10242238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83224201 = 83879923.

It is a super-3 number, since 3×102422383 (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10242233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560558 + ... + 2560561.

It is an arithmetic number, because the mean of its divisors is an integer number (3840840).

Almost surely, 210242238 is an apocalyptic number.

10242238 is a deficient number, since it is larger than the sum of its proper divisors (5121122).

10242238 is an equidigital number, since it uses as much as digits as its factorization.

10242238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121121.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 10242238 is about 3200.3496683956. The cubic root of 10242238 is about 217.1692281404.

Adding to 10242238 its reverse (83224201), we get a palindrome (93466439).

The spelling of 10242238 in words is "ten million, two hundred forty-two thousand, two hundred thirty-eight".

Divisors: 1 2 5121119 10242238