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51007552 = 261941947
BaseRepresentation
bin1100001010010…
…1000001000000
310112222110012121
43002211001000
5101024220202
65021134024
71156362031
oct302450100
9115873177
1051007552
1126879802
12150ba314
13a74bbab
146abaa88
154728537
hex30a5040

51007552 has 28 divisors (see below), whose sum is σ = 106547920. Its totient is φ = 24160896.

The previous prime is 51007543. The next prime is 51007559. The reversal of 51007552 is 25570015.

It is a happy number.

It is a super-2 number, since 2×510075522 = 5203540722065408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51007559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19758 + ... + 22189.

Almost surely, 251007552 is an apocalyptic number.

It is an amenable number.

51007552 is an abundant number, since it is smaller than the sum of its proper divisors (55540368).

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

51007552 is a wasteful number, since it uses less digits than its factorization.

51007552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41978 (or 41968 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 51007552 is about 7141.9571547301. The cubic root of 51007552 is about 370.8612806386.

Adding to 51007552 its reverse (25570015), we get a palindrome (76577567).

The spelling of 51007552 in words is "fifty-one million, seven thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 19 32 38 64 76 152 304 608 1216 41947 83894 167788 335576 671152 796993 1342304 1593986 2684608 3187972 6375944 12751888 25503776 51007552