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10252807 = 28336229
BaseRepresentation
bin100111000111…
…001000000111
3201021220012121
4213013020013
510111042212
61003430411
7153101365
oct47071007
921256177
1010252807
1158730a4
123525407
13217c966
14150c635
15d77d07
hex9c7207

10252807 has 4 divisors (see below), whose sum is σ = 10289320. Its totient is φ = 10216296.

The previous prime is 10252783. The next prime is 10252817. The reversal of 10252807 is 70825201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70825201 = 167424103.

It is a cyclic number.

It is not a de Polignac number, because 10252807 - 211 = 10250759 is a prime.

It is a super-3 number, since 3×102528073 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10252817) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 17832 + ... + 18397.

It is an arithmetic number, because the mean of its divisors is an integer number (2572330).

Almost surely, 210252807 is an apocalyptic number.

10252807 is a deficient number, since it is larger than the sum of its proper divisors (36513).

10252807 is an equidigital number, since it uses as much as digits as its factorization.

10252807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36512.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 10252807 is about 3202.0004684572. Note that the first 3 decimals coincide. The cubic root of 10252807 is about 217.2439016811.

The spelling of 10252807 in words is "ten million, two hundred fifty-two thousand, eight hundred seven".

Divisors: 1 283 36229 10252807