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15252107 = 131173239
BaseRepresentation
bin111010001011…
…101010001011
31001200212221212
4322023222023
512401031412
61302523335
7243432533
oct72135213
931625855
1015252107
118678152
12513654b
133210320
1420504c3
151514222
hexe8ba8b

15252107 has 4 divisors (see below), whose sum is σ = 16425360. Its totient is φ = 14078856.

The previous prime is 15252091. The next prime is 15252113. The reversal of 15252107 is 70125251.

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: 70125251 = 710017893.

It is a cyclic number.

It is not a de Polignac number, because 15252107 - 24 = 15252091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15252157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586607 + ... + 586632.

It is an arithmetic number, because the mean of its divisors is an integer number (4106340).

Almost surely, 215252107 is an apocalyptic number.

15252107 is a deficient number, since it is larger than the sum of its proper divisors (1173253).

15252107 is a wasteful number, since it uses less digits than its factorization.

15252107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173252.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 15252107 is about 3905.3946023417. The cubic root of 15252107 is about 247.9952034712.

Adding to 15252107 its reverse (70125251), we get a palindrome (85377358).

The spelling of 15252107 in words is "fifteen million, two hundred fifty-two thousand, one hundred seven".

Divisors: 1 13 1173239 15252107