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51276830 = 2511466153
BaseRepresentation
bin1100001110011…
…0110000011110
310120111010120212
43003212300132
5101111324310
65031012422
71161563063
oct303466036
9116433525
1051276830
1126a43050
121520a112
13a814627
146b4ac6a
15477d205
hex30e6c1e

51276830 has 16 divisors (see below), whose sum is σ = 100689264. Its totient is φ = 18646080.

The previous prime is 51276817. The next prime is 51276853. The reversal of 51276830 is 3867215.

It is a happy number.

51276830 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 an unprimeable number.

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, 232967 + ... + 233186.

It is an arithmetic number, because the mean of its divisors is an integer number (6293079).

Almost surely, 251276830 is an apocalyptic number.

51276830 is a deficient number, since it is larger than the sum of its proper divisors (49412434).

51276830 is a wasteful number, since it uses less digits than its factorization.

51276830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466171.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 51276830 is about 7160.7841749350. The cubic root of 51276830 is about 371.5127499402.

The spelling of 51276830 in words is "fifty-one million, two hundred seventy-six thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 466153 932306 2330765 4661530 5127683 10255366 25638415 51276830