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51348766 = 2721992633
BaseRepresentation
bin1100001111100…
…0010100011110
310120121210021011
43003320110132
5101121130031
65032325434
71162312600
oct303702436
9116553234
1051348766
1126a920a7
121524387a
13a83b2b1
146b69170
1547946b1
hex30f851e

51348766 has 24 divisors (see below), whose sum is σ = 90082800. Its totient is φ = 21887712.

The previous prime is 51348761. The next prime is 51348799. The reversal of 51348766 is 66784315.

It is a happy number.

51348766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51348761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18186 + ... + 20818.

It is an arithmetic number, because the mean of its divisors is an integer number (3753450).

Almost surely, 251348766 is an apocalyptic number.

51348766 is a deficient number, since it is larger than the sum of its proper divisors (38734034).

51348766 is a wasteful number, since it uses less digits than its factorization.

51348766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848 (or 2841 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 51348766 is about 7165.8053280842. The cubic root of 51348766 is about 371.6863998675.

The spelling of 51348766 in words is "fifty-one million, three hundred forty-eight thousand, seven hundred sixty-six".

Divisors: 1 2 7 14 49 98 199 398 1393 2633 2786 5266 9751 18431 19502 36862 129017 258034 523967 1047934 3667769 7335538 25674383 51348766