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15061225 = 525910211
BaseRepresentation
bin111001011101…
…000011101001
31001100012010011
4321131003221
512323424400
61254451521
7242006164
oct71350351
931305104
1015061225
1185577a3
125063ba1
13317448a
142000adb
1514c78ba
hexe5d0e9

15061225 has 12 divisors (see below), whose sum is σ = 18994320. Its totient is φ = 11843600.

The previous prime is 15061199. The next prime is 15061231. The reversal of 15061225 is 52216051.

It is not a de Polignac number, because 15061225 - 219 = 14536937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15061196 and 15061205.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3631 + ... + 6580.

It is an arithmetic number, because the mean of its divisors is an integer number (1582860).

Almost surely, 215061225 is an apocalyptic number.

It is an amenable number.

15061225 is a deficient number, since it is larger than the sum of its proper divisors (3933095).

15061225 is a wasteful number, since it uses less digits than its factorization.

15061225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280 (or 10275 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 15061225 is about 3880.8794106491. The cubic root of 15061225 is about 246.9562937960.

Adding to 15061225 its reverse (52216051), we get a palindrome (67277276).

The spelling of 15061225 in words is "fifteen million, sixty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 59 295 1475 10211 51055 255275 602449 3012245 15061225