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15225230 = 258917107
BaseRepresentation
bin111010000101…
…000110001110
31001122112002102
4322011012032
512344201410
61302155102
7243261266
oct72050616
931575072
1015225230
118659a39
125122a92
133201017
1420447a6
15150b2a5
hexe8518e

15225230 has 16 divisors (see below), whose sum is σ = 27714960. Its totient is φ = 6021312.

The previous prime is 15225181. The next prime is 15225233. The reversal of 15225230 is 3252251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15225233) 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 7 ways as a sum of consecutive naturals, for example, 7664 + ... + 9443.

It is an arithmetic number, because the mean of its divisors is an integer number (1732185).

Almost surely, 215225230 is an apocalyptic number.

15225230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15225230 is a deficient number, since it is larger than the sum of its proper divisors (12489730).

15225230 is a wasteful number, since it uses less digits than its factorization.

15225230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17203.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 15225230 is about 3901.9520755642. The cubic root of 15225230 is about 247.8494468638.

Adding to 15225230 its reverse (3252251), we get a palindrome (18477481).

The spelling of 15225230 in words is "fifteen million, two hundred twenty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 89 178 445 890 17107 34214 85535 171070 1522523 3045046 7612615 15225230