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51214641 = 326963463
BaseRepresentation
bin1100001101011…
…1100100110001
310120100222021120
43003113210301
5101102332031
65025412453
71161213552
oct303274461
9116328246
1051214641
1126a00355
121519a129
13a7c222a
146b32329
154769a96
hex30d7931

51214641 has 8 divisors (see below), whose sum is σ = 68541120. Its totient is φ = 34015632.

The previous prime is 51214613. The next prime is 51214663. The reversal of 51214641 is 14641215.

It is a happy number.

51214641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51214641 - 26 = 51214577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51214601) 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 7 ways as a sum of consecutive naturals, for example, 30925 + ... + 32538.

It is an arithmetic number, because the mean of its divisors is an integer number (8567640).

Almost surely, 251214641 is an apocalyptic number.

It is an amenable number.

51214641 is a deficient number, since it is larger than the sum of its proper divisors (17326479).

51214641 is a wasteful number, since it uses less digits than its factorization.

51214641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63735.

The product of its digits is 960, while the sum is 24.

The square root of 51214641 is about 7156.4405258480. The cubic root of 51214641 is about 371.3624978481.

Adding to 51214641 its reverse (14641215), we get a palindrome (65855856).

The spelling of 51214641 in words is "fifty-one million, two hundred fourteen thousand, six hundred forty-one".

Divisors: 1 3 269 807 63463 190389 17071547 51214641