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51082572 = 22329229641
BaseRepresentation
bin1100001011011…
…1010101001100
310120010021010010
43002313111030
5101034120242
65022513220
71160123532
oct302672514
9116107103
1051082572
1126920102
1215135810
13a777098
146ada152
15474089c
hex30b754c

51082572 has 48 divisors (see below), whose sum is σ = 124034400. Its totient is φ = 16343040.

The previous prime is 51082567. The next prime is 51082579. The reversal of 51082572 is 27528015.

51082572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51082579) 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, 79372 + ... + 80012.

It is an arithmetic number, because the mean of its divisors is an integer number (2584050).

Almost surely, 251082572 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 51082572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62017200).

51082572 is an abundant number, since it is smaller than the sum of its proper divisors (72951828).

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

51082572 is a wasteful number, since it uses less digits than its factorization.

51082572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 51082572 is about 7147.2072867659. The cubic root of 51082572 is about 371.0430078761.

The spelling of 51082572 in words is "fifty-one million, eighty-two thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 229 348 458 641 687 916 1282 1374 1923 2564 2748 3846 6641 7692 13282 18589 19923 26564 37178 39846 55767 74356 79692 111534 146789 223068 293578 440367 587156 880734 1761468 4256881 8513762 12770643 17027524 25541286 51082572