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51325930 = 2510349831
BaseRepresentation
bin1100001111001…
…0101111101010
310120120121221101
43003302233222
5101114412210
65032032014
71162156165
oct303625752
9116517841
1051325930
1126a76a27
121523260a
13a830a96
146b60adc
15478ca3a
hex30f2bea

51325930 has 16 divisors (see below), whose sum is σ = 93285504. Its totient is φ = 20330640.

The previous prime is 51325921. The next prime is 51325933. The reversal of 51325930 is 3952315.

It is not an unprimeable number, because it can be changed into a prime (51325933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23886 + ... + 25945.

It is an arithmetic number, because the mean of its divisors is an integer number (5830344).

Almost surely, 251325930 is an apocalyptic number.

51325930 is a deficient number, since it is larger than the sum of its proper divisors (41959574).

51325930 is a wasteful number, since it uses less digits than its factorization.

51325930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49941.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 51325930 is about 7164.2117500811. The cubic root of 51325930 is about 371.6312924790.

The spelling of 51325930 in words is "fifty-one million, three hundred twenty-five thousand, nine hundred thirty".

Divisors: 1 2 5 10 103 206 515 1030 49831 99662 249155 498310 5132593 10265186 25662965 51325930