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51241252 = 2219674227
BaseRepresentation
bin1100001101111…
…0000100100100
310120102022210011
43003132010210
5101104210002
65030140004
71161354256
oct303360444
9116368704
1051241252
1126a19347
12151b1604
13a80138a
146b3bcd6
1547728d7
hex30de124

51241252 has 12 divisors (see below), whose sum is σ = 94391920. Its totient is φ = 24272136.

The previous prime is 51241243. The next prime is 51241259. The reversal of 51241252 is 25214215.

It is not an unprimeable number, because it can be changed into a prime (51241259) 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 3 ways as a sum of consecutive naturals, for example, 337038 + ... + 337189.

Almost surely, 251241252 is an apocalyptic number.

It is an amenable number.

51241252 is a deficient number, since it is larger than the sum of its proper divisors (43150668).

51241252 is a wasteful number, since it uses less digits than its factorization.

51241252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674250 (or 674248 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 51241252 is about 7158.2995187405. The cubic root of 51241252 is about 371.4268063878.

Adding to 51241252 its reverse (25214215), we get a palindrome (76455467).

The spelling of 51241252 in words is "fifty-one million, two hundred forty-one thousand, two hundred fifty-two".

Divisors: 1 2 4 19 38 76 674227 1348454 2696908 12810313 25620626 51241252