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15040006 = 219133931
BaseRepresentation
bin111001010111…
…111000000110
31001022010000021
4321113320012
512322240011
61254205354
7241560262
oct71277006
931263007
1015040006
118542863
12505385a
133167917
141dd70a2
1514c1471
hexe57e06

15040006 has 8 divisors (see below), whose sum is σ = 22577544. Its totient is φ = 7514160.

The previous prime is 15039967. The next prime is 15040007. The reversal of 15040006 is 60004051.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15040007) 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, 1861 + ... + 5791.

It is an arithmetic number, because the mean of its divisors is an integer number (2822193).

Almost surely, 215040006 is an apocalyptic number.

15040006 is a deficient number, since it is larger than the sum of its proper divisors (7537538).

15040006 is a wasteful number, since it uses less digits than its factorization.

15040006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 15040006 is about 3878.1446594989. The cubic root of 15040006 is about 246.8402645356.

Adding to 15040006 its reverse (60004051), we get a palindrome (75044057).

The spelling of 15040006 in words is "fifteen million, forty thousand, six".

Divisors: 1 2 1913 3826 3931 7862 7520003 15040006