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12872299 = 111170209
BaseRepresentation
bin110001000110…
…101001101011
3220012222110211
4301012221223
511243403144
61135521551
7214261366
oct61065153
926188424
1012872299
1172a2170
1243892b7
13288905b
1419d10dd
1511e4034
hexc46a6b

12872299 has 4 divisors (see below), whose sum is σ = 14042520. Its totient is φ = 11702080.

The previous prime is 12872287. The next prime is 12872303. The reversal of 12872299 is 99227821.

12872299 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.

It is a cyclic number.

It is not a de Polignac number, because 12872299 - 29 = 12871787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12872239) 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, 585094 + ... + 585115.

It is an arithmetic number, because the mean of its divisors is an integer number (3510630).

Almost surely, 212872299 is an apocalyptic number.

12872299 is a deficient number, since it is larger than the sum of its proper divisors (1170221).

12872299 is a wasteful number, since it uses less digits than its factorization.

12872299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170220.

The product of its digits is 36288, while the sum is 40.

The square root of 12872299 is about 3587.7986286858. The cubic root of 12872299 is about 234.3610165050.

It can be divided in two parts, 128722 and 99, that added together give a palindrome (128821).

The spelling of 12872299 in words is "twelve million, eight hundred seventy-two thousand, two hundred ninety-nine".

Divisors: 1 11 1170209 12872299