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15136018 = 2173371321
BaseRepresentation
bin111001101111…
…010100010010
31001110222201021
4321233110102
512333323033
61300230054
7242440222
oct71572422
931428637
1015136018
1185a8a07
12509b32a
13319c531
142020082
1514deb2d
hexe6f512

15136018 has 16 divisors (see below), whose sum is σ = 24129144. Its totient is φ = 7096320.

The previous prime is 15136007. The next prime is 15136019. The reversal of 15136018 is 81063151.

It can be written as a sum of positive squares in 4 ways, for example, as 14953689 + 182329 = 3867^2 + 427^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15135983 and 15136001.

It is not an unprimeable number, because it can be changed into a prime (15136019) 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 7 ways as a sum of consecutive naturals, for example, 10798 + ... + 12118.

Almost surely, 215136018 is an apocalyptic number.

15136018 is a deficient number, since it is larger than the sum of its proper divisors (8993126).

15136018 is a wasteful number, since it uses less digits than its factorization.

15136018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 15136018 is about 3890.5035663780. The cubic root of 15136018 is about 247.3644082661.

Adding to 15136018 its reverse (81063151), we get a palindrome (96199169).

The spelling of 15136018 in words is "fifteen million, one hundred thirty-six thousand, eighteen".

Divisors: 1 2 17 34 337 674 1321 2642 5729 11458 22457 44914 445177 890354 7568009 15136018