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51030232 = 2311631919
BaseRepresentation
bin1100001010101…
…0100011011000
310120000121022121
43002222203120
5101030431412
65021431024
71156515121
oct302524330
9116017277
1051030232
1126894850
121510b474
13a759306
146ac5048
154730107
hex30aa8d8

51030232 has 32 divisors (see below), whose sum is σ = 104659200. Its totient is φ = 23133600.

The previous prime is 51030223. The next prime is 51030233. The reversal of 51030232 is 23203015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51030233) 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 7 ways as a sum of consecutive naturals, for example, 55069 + ... + 55987.

It is an arithmetic number, because the mean of its divisors is an integer number (3270600).

Almost surely, 251030232 is an apocalyptic number.

It is an amenable number.

51030232 is an abundant number, since it is smaller than the sum of its proper divisors (53628968).

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

51030232 is a wasteful number, since it uses less digits than its factorization.

51030232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 1563 counting only the distinct ones).

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

The square root of 51030232 is about 7143.5447783296. The cubic root of 51030232 is about 370.9162390855.

Adding to 51030232 its reverse (23203015), we get a palindrome (74233247).

The spelling of 51030232 in words is "fifty-one million, thirty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 88 631 919 1262 1838 2524 3676 5048 6941 7352 10109 13882 20218 27764 40436 55528 80872 579889 1159778 2319556 4639112 6378779 12757558 25515116 51030232