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51528852 = 22331672857
BaseRepresentation
bin1100010010010…
…0010010010100
310120221221022000
43010210102110
5101142410402
65040235300
71163662614
oct304442224
9116857260
1051528852
11270a5431
121530bb30
13a8a225b
146bb4a44
1547ccc1c
hex3124494

51528852 has 48 divisors (see below), whose sum is σ = 134440320. Its totient is φ = 17067456.

The previous prime is 51528847. The next prime is 51528859. The reversal of 51528852 is 25882515.

51528852 is a `hidden beast` number, since 51 + 528 + 85 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51528859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16608 + ... + 19464.

It is an arithmetic number, because the mean of its divisors is an integer number (2800840).

Almost surely, 251528852 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 51528852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67220160).

51528852 is an abundant number, since it is smaller than the sum of its proper divisors (82911468).

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

51528852 is a wasteful number, since it uses less digits than its factorization.

51528852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037 (or 3029 counting only the distinct ones).

The product of its digits is 32000, while the sum is 36.

The square root of 51528852 is about 7178.3599798283. The cubic root of 51528852 is about 372.1204084727.

The spelling of 51528852 in words is "fifty-one million, five hundred twenty-eight thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 167 334 501 668 1002 1503 2004 2857 3006 4509 5714 6012 8571 9018 11428 17142 18036 25713 34284 51426 77139 102852 154278 308556 477119 954238 1431357 1908476 2862714 4294071 5725428 8588142 12882213 17176284 25764426 51528852