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13412503 = 131031731
BaseRepresentation
bin110011001010…
…100010010111
3221020102111101
4303022202113
511413200003
61155250531
7222001336
oct63124227
927212441
1013412503
117631015
1245a9a47
132a17bc0
141ad1d1d
15129e11d
hexcca897

13412503 has 4 divisors (see below), whose sum is σ = 14444248. Its totient is φ = 12380760.

The previous prime is 13412501. The next prime is 13412513. The reversal of 13412503 is 30521431.

13412503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30521431 = 244712473.

It is a cyclic number.

It is not a de Polignac number, because 13412503 - 21 = 13412501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13412501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515853 + ... + 515878.

It is an arithmetic number, because the mean of its divisors is an integer number (3611062).

Almost surely, 213412503 is an apocalyptic number.

13412503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13412503 is a deficient number, since it is larger than the sum of its proper divisors (1031745).

13412503 is a wasteful number, since it uses less digits than its factorization.

13412503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031744.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13412503 is about 3662.3084250238. The cubic root of 13412503 is about 237.5946245293.

Adding to 13412503 its reverse (30521431), we get a palindrome (43933934).

It can be divided in two parts, 1341 and 2503, that added together give a square (3844 = 622).

The spelling of 13412503 in words is "thirteen million, four hundred twelve thousand, five hundred three".

Divisors: 1 13 1031731 13412503