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51920682 = 23112573061
BaseRepresentation
bin1100011000001…
…1111100101010
310121200211210020
43012003330222
5101242430212
65052501310
71200214152
oct306037452
9117624706
1051920682
1127342860
121547a836
13a9ab6c8
146c77762
154858d8c
hex3183f2a

51920682 has 32 divisors (see below), whose sum is σ = 113759424. Its totient is φ = 15667200.

The previous prime is 51920677. The next prime is 51920707. The reversal of 51920682 is 28602915.

51920682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 15 ways as a sum of consecutive naturals, for example, 15432 + ... + 18492.

It is an arithmetic number, because the mean of its divisors is an integer number (3554982).

Almost surely, 251920682 is an apocalyptic number.

51920682 is an abundant number, since it is smaller than the sum of its proper divisors (61838742).

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

51920682 is a wasteful number, since it uses less digits than its factorization.

51920682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 51920682 is about 7205.6007383146. The cubic root of 51920682 is about 373.0612400557.

The spelling of 51920682 in words is "fifty-one million, nine hundred twenty thousand, six hundred eighty-two".

Divisors: 1 2 3 6 11 22 33 66 257 514 771 1542 2827 3061 5654 6122 8481 9183 16962 18366 33671 67342 101013 202026 786677 1573354 2360031 4720062 8653447 17306894 25960341 51920682