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15002012 = 224387221
BaseRepresentation
bin111001001110…
…100110011100
31001020011220002
4321032212130
512320031022
61253313432
7241341434
oct71164634
931204802
1015002012
118517263
125035878
13315353c
141dc72c4
1514b5092
hexe4e99c

15002012 has 12 divisors (see below), whose sum is σ = 26864376. Its totient is φ = 7326480.

The previous prime is 15001991. The next prime is 15002017. The reversal of 15002012 is 21020051.

It is a junction number, because it is equal to n+sod(n) for n = 15001984 and 15002002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15002017) 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, 43439 + ... + 43782.

It is an arithmetic number, because the mean of its divisors is an integer number (2238698).

Almost surely, 215002012 is an apocalyptic number.

It is an amenable number.

15002012 is a deficient number, since it is larger than the sum of its proper divisors (11862364).

15002012 is a wasteful number, since it uses less digits than its factorization.

15002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87268 (or 87266 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 15002012 is about 3873.2430855809. The cubic root of 15002012 is about 246.6322336483.

Adding to 15002012 its reverse (21020051), we get a palindrome (36022063).

The spelling of 15002012 in words is "fifteen million, two thousand, twelve".

Divisors: 1 2 4 43 86 172 87221 174442 348884 3750503 7501006 15002012