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15145828 = 2212373061
BaseRepresentation
bin111001110001…
…101101100100
31001111111011121
4321301231210
512334131303
61300343324
7242510635
oct71615544
931444147
1015145828
118605315
1250a4b44
1331a3b39
14202388c
1514e29bd
hexe71b64

15145828 has 12 divisors (see below), whose sum is σ = 26535292. Its totient is φ = 7564320.

The previous prime is 15145817. The next prime is 15145829. The reversal of 15145828 is 82854151.

It can be written as a sum of positive squares in 2 ways, for example, as 13191424 + 1954404 = 3632^2 + 1398^2 .

It is a super-2 number, since 2×151458282 = 458792211611168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15145793 and 15145802.

It is not an unprimeable number, because it can be changed into a prime (15145829) 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, 3418 + ... + 6478.

Almost surely, 215145828 is an apocalyptic number.

It is an amenable number.

15145828 is a deficient number, since it is larger than the sum of its proper divisors (11389464).

15145828 is a wasteful number, since it uses less digits than its factorization.

15145828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302 (or 4300 counting only the distinct ones).

The product of its digits is 12800, while the sum is 34.

The square root of 15145828 is about 3891.7641244043. The cubic root of 15145828 is about 247.4178375713.

Adding to 15145828 its reverse (82854151), we get a palindrome (97999979).

The spelling of 15145828 in words is "fifteen million, one hundred forty-five thousand, eight hundred twenty-eight".

Divisors: 1 2 4 1237 2474 3061 4948 6122 12244 3786457 7572914 15145828