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51230777 = 138834463
BaseRepresentation
bin1100001101101…
…1100000111001
310120101210102012
43003123200321
5101103341102
65030015305
71161311603
oct303334071
9116353365
1051230777
1126a11494
12151a7535
13a7c9690
146b38173
15476e752
hex30db839

51230777 has 8 divisors (see below), whose sum is σ = 55246464. Its totient is φ = 47225808.

The previous prime is 51230761. The next prime is 51230797. The reversal of 51230777 is 77703215.

51230777 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 a cyclic number.

It is not a de Polignac number, because 51230777 - 24 = 51230761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51230747) 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, 9248 + ... + 13710.

It is an arithmetic number, because the mean of its divisors is an integer number (6905808).

Almost surely, 251230777 is an apocalyptic number.

It is an amenable number.

51230777 is a deficient number, since it is larger than the sum of its proper divisors (4015687).

51230777 is a wasteful number, since it uses less digits than its factorization.

51230777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 51230777 is about 7157.5678131611. The cubic root of 51230777 is about 371.4014950043.

The spelling of 51230777 in words is "fifty-one million, two hundred thirty thousand, seven hundred seventy-seven".

Divisors: 1 13 883 4463 11479 58019 3940829 51230777