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51032230 = 255103223
BaseRepresentation
bin1100001010101…
…1000010100110
310120000201001121
43002223002212
5101031012410
65021444154
71156524004
oct302530246
9116021047
1051032230
11268962a7
121511065a
13a75a1b2
146ac5a74
1547309da
hex30ab0a6

51032230 has 8 divisors (see below), whose sum is σ = 91858032. Its totient is φ = 20412888.

The previous prime is 51032221. The next prime is 51032237. The reversal of 51032230 is 3223015.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51032237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2551602 + ... + 2551621.

It is an arithmetic number, because the mean of its divisors is an integer number (11482254).

Almost surely, 251032230 is an apocalyptic number.

51032230 is a deficient number, since it is larger than the sum of its proper divisors (40825802).

51032230 is a wasteful number, since it uses less digits than its factorization.

51032230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5103230.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 51032230 is about 7143.6846234979. The cubic root of 51032230 is about 370.9210798824.

Adding to 51032230 its reverse (3223015), we get a palindrome (54255245).

The spelling of 51032230 in words is "fifty-one million, thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 5103223 10206446 25516115 51032230