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12872929 = 371392503
BaseRepresentation
bin110001000110…
…110011100001
3220020000100011
4301012303201
511243413204
61135524521
7214263256
oct61066341
926200304
1012872929
1172a2693
124389741
132889424
1419d142d
1511e4304
hexc46ce1

12872929 has 8 divisors (see below), whose sum is σ = 13321280. Its totient is φ = 12429936.

The previous prime is 12872887. The next prime is 12872933. The reversal of 12872929 is 92927821.

12872929 = T359 + T360 + ... + T497.

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

It is not a de Polignac number, because 12872929 - 221 = 10775777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12872891 and 12872900.

It is not an unprimeable number, because it can be changed into a prime (12872999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3892 + ... + 6394.

It is an arithmetic number, because the mean of its divisors is an integer number (1665160).

Almost surely, 212872929 is an apocalyptic number.

It is an amenable number.

12872929 is a deficient number, since it is larger than the sum of its proper divisors (448351).

12872929 is a wasteful number, since it uses less digits than its factorization.

12872929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679.

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

The square root of 12872929 is about 3587.8864251813. The cubic root of 12872929 is about 234.3648398322.

The spelling of 12872929 in words is "twelve million, eight hundred seventy-two thousand, nine hundred twenty-nine".

Divisors: 1 37 139 2503 5143 92611 347917 12872929