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12950387 = 34737321
BaseRepresentation
bin110001011001…
…101101110011
3220100221120222
4301121231303
511303403022
61141323255
7215035142
oct61315563
926327528
1012950387
1173458aa
12440652b
1328b5768
141a11759
15120c242
hexc59b73

12950387 has 4 divisors (see below), whose sum is σ = 12988056. Its totient is φ = 12912720.

The previous prime is 12950359. The next prime is 12950393. The reversal of 12950387 is 78305921.

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 12950387 - 28 = 12950131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12950687) 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, 18314 + ... + 19007.

It is an arithmetic number, because the mean of its divisors is an integer number (3247014).

Almost surely, 212950387 is an apocalyptic number.

12950387 is a deficient number, since it is larger than the sum of its proper divisors (37669).

12950387 is an equidigital number, since it uses as much as digits as its factorization.

12950387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37668.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 12950387 is about 3598.6646134365. The cubic root of 12950387 is about 234.8339675268.

The spelling of 12950387 in words is "twelve million, nine hundred fifty thousand, three hundred eighty-seven".

Divisors: 1 347 37321 12950387