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12872613 = 313330067
BaseRepresentation
bin110001000110…
…101110100101
3220012222220110
4301012232211
511243410423
61135523233
7214262325
oct61065645
926188813
1012872613
1172a2426
124389519
132889240
1419d1285
1511e4193
hexc46ba5

12872613 has 8 divisors (see below), whose sum is σ = 18483808. Its totient is φ = 7921584.

The previous prime is 12872611. The next prime is 12872627. The reversal of 12872613 is 31627821.

12872613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12872613 - 21 = 12872611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164995 + ... + 165072.

It is an arithmetic number, because the mean of its divisors is an integer number (2310476).

Almost surely, 212872613 is an apocalyptic number.

12872613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12872613 is a deficient number, since it is larger than the sum of its proper divisors (5611195).

12872613 is a wasteful number, since it uses less digits than its factorization.

12872613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330083.

The product of its digits is 4032, while the sum is 30.

The square root of 12872613 is about 3587.8423878426. The cubic root of 12872613 is about 234.3629221154.

The spelling of 12872613 in words is "twelve million, eight hundred seventy-two thousand, six hundred thirteen".

Divisors: 1 3 13 39 330067 990201 4290871 12872613