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15130228 = 22232953107
BaseRepresentation
bin111001101101…
…111001110100
31001110200202211
4321231321310
512333131403
61300143204
7242414311
oct71557164
931420684
1015130228
1185a4623
125097b04
1331999c9
14201bd08
1514dd06d
hexe6de74

15130228 has 48 divisors (see below), whose sum is σ = 29393280. Its totient is φ = 6790784.

The previous prime is 15130223. The next prime is 15130229. The reversal of 15130228 is 82203151.

It is a junction number, because it is equal to n+sod(n) for n = 15130199 and 15130208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15130223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141351 + ... + 141457.

It is an arithmetic number, because the mean of its divisors is an integer number (612360).

Almost surely, 215130228 is an apocalyptic number.

It is an amenable number.

15130228 is a deficient number, since it is larger than the sum of its proper divisors (14263052).

15130228 is a wasteful number, since it uses less digits than its factorization.

15130228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 15130228 is about 3889.7593755912. The cubic root of 15130228 is about 247.3328627039.

Adding to 15130228 its reverse (82203151), we get a palindrome (97333379).

The spelling of 15130228 in words is "fifteen million, one hundred thirty thousand, two hundred twenty-eight".

Divisors: 1 2 4 23 29 46 53 58 92 106 107 116 212 214 428 667 1219 1334 1537 2438 2461 2668 3074 3103 4876 4922 5671 6148 6206 9844 11342 12412 22684 35351 70702 71369 130433 141404 142738 164459 260866 285476 328918 521732 657836 3782557 7565114 15130228