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15014131 = 111817541
BaseRepresentation
bin111001010001…
…100011110011
31001020210111221
4321101203303
512320423011
61253445511
7241421656
oct71214363
931223457
1015014131
118525380
125040897
133158c02
141dcb89d
1514b8971
hexe518f3

15014131 has 8 divisors (see below), whose sum is σ = 16471728. Its totient is φ = 13572000.

The previous prime is 15014107. The next prime is 15014171. The reversal of 15014131 is 13141051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15014131 - 25 = 15014099 is a prime.

It is a super-2 number, since 2×150141312 = 450848259370322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15014171) 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, 1780 + ... + 5761.

It is an arithmetic number, because the mean of its divisors is an integer number (2058966).

Almost surely, 215014131 is an apocalyptic number.

15014131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15014131 is a deficient number, since it is larger than the sum of its proper divisors (1457597).

15014131 is a wasteful number, since it uses less digits than its factorization.

15014131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 15014131 is about 3874.8072210111. The cubic root of 15014131 is about 246.6986276661.

Adding to 15014131 its reverse (13141051), we get a palindrome (28155182).

Subtracting from 15014131 its reverse (13141051), we obtain a triangular number (1873080 = T1935).

The spelling of 15014131 in words is "fifteen million, fourteen thousand, one hundred thirty-one".

Divisors: 1 11 181 1991 7541 82951 1364921 15014131