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51227052 = 223171511663
BaseRepresentation
bin1100001101101…
…0100110101100
310120101121022020
43003122212230
5101103231202
65025550140
71161265002
oct303324654
9116347266
1051227052
1126a09708
12151a5350
13a7c7a86
146b36a72
15476d5bc
hex30da9ac

51227052 has 48 divisors (see below), whose sum is σ = 127475712. Its totient is φ = 15955200.

The previous prime is 51227051. The next prime is 51227053. The reversal of 51227052 is 25072215.

51227052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51227051) and next prime (51227053).

It is a super-2 number, since 2×512270522 = 5248421713221408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51227051) by changing a digit.

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, 29973 + ... + 31635.

It is an arithmetic number, because the mean of its divisors is an integer number (2655744).

Almost surely, 251227052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51227052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63737856).

51227052 is an abundant number, since it is smaller than the sum of its proper divisors (76248660).

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

51227052 is a wasteful number, since it uses less digits than its factorization.

51227052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 51227052 is about 7157.3075943402. The cubic root of 51227052 is about 371.3924932272.

Adding to 51227052 its reverse (25072215), we get a palindrome (76299267).

The spelling of 51227052 in words is "fifty-one million, two hundred twenty-seven thousand, fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 151 204 302 453 604 906 1663 1812 2567 3326 4989 5134 6652 7701 9978 10268 15402 19956 28271 30804 56542 84813 113084 169626 251113 339252 502226 753339 1004452 1506678 3013356 4268921 8537842 12806763 17075684 25613526 51227052