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51270468 = 22321120249
BaseRepresentation
bin1100001110010…
…1001101000100
310120110210212020
43003211031010
5101111123333
65030523140
71161535404
oct303451504
9116423766
1051270468
1126a39297
12152064b0
13a811772
146b48804
15477b3b3
hex30e5344

51270468 has 24 divisors (see below), whose sum is σ = 120204000. Its totient is φ = 17008320.

The previous prime is 51270437. The next prime is 51270481. The reversal of 51270468 is 86407215.

It is an unprimeable number.

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, 7593 + ... + 12656.

It is an arithmetic number, because the mean of its divisors is an integer number (5008500).

Almost surely, 251270468 is an apocalyptic number.

It is an amenable number.

51270468 is an abundant number, since it is smaller than the sum of its proper divisors (68933532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51270468 is a wasteful number, since it uses less digits than its factorization.

51270468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20467 (or 20465 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 51270468 is about 7160.3399360645. The cubic root of 51270468 is about 371.4973845737.

The spelling of 51270468 in words is "fifty-one million, two hundred seventy thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 211 422 633 844 1266 2532 20249 40498 60747 80996 121494 242988 4272539 8545078 12817617 17090156 25635234 51270468