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12530283 = 34176761
BaseRepresentation
bin101111110011…
…001001101011
3212120121022120
4233303021223
511201432113
61124322323
7211335303
oct57631153
925517276
1012530283
117089207
1242433a3
13279948c
141942603
151177a23
hexbf326b

12530283 has 4 divisors (see below), whose sum is σ = 16707048. Its totient is φ = 8353520.

The previous prime is 12530279. The next prime is 12530303. The reversal of 12530283 is 38203521.

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 12530283 - 22 = 12530279 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12530213) 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, 2088378 + ... + 2088383.

It is an arithmetic number, because the mean of its divisors is an integer number (4176762).

Almost surely, 212530283 is an apocalyptic number.

12530283 is a deficient number, since it is larger than the sum of its proper divisors (4176765).

12530283 is an equidigital number, since it uses as much as digits as its factorization.

12530283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176764.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 12530283 is about 3539.8139781633. The cubic root of 12530283 is about 232.2667055172.

The spelling of 12530283 in words is "twelve million, five hundred thirty thousand, two hundred eighty-three".

Divisors: 1 3 4176761 12530283