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10207157 = 17600421
BaseRepresentation
bin100110111011…
…111110110101
3201012120120212
4212323332311
510103112112
61002435205
7152521322
oct46737665
921176525
1010207157
115841874
123502b05
132164c4c
1414d9b49
15d69522
hex9bbfb5

10207157 has 4 divisors (see below), whose sum is σ = 10807596. Its totient is φ = 9606720.

The previous prime is 10207151. The next prime is 10207181. The reversal of 10207157 is 75170201.

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: 75170201 = 89844609.

It can be written as a sum of positive squares in 2 ways, for example, as 4866436 + 5340721 = 2206^2 + 2311^2 .

It is a cyclic number.

It is not a de Polignac number, because 10207157 - 28 = 10206901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10207151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300194 + ... + 300227.

It is an arithmetic number, because the mean of its divisors is an integer number (2701899).

Almost surely, 210207157 is an apocalyptic number.

10207157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10207157 is a deficient number, since it is larger than the sum of its proper divisors (600439).

10207157 is an equidigital number, since it uses as much as digits as its factorization.

10207157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600438.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 10207157 is about 3194.8641598666. The cubic root of 10207157 is about 216.9210002168.

Adding to 10207157 its reverse (75170201), we get a palindrome (85377358).

The spelling of 10207157 in words is "ten million, two hundred seven thousand, one hundred fifty-seven".

Divisors: 1 17 600421 10207157