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51045260 = 225741063
BaseRepresentation
bin1100001010111…
…0001110001100
310120001100221012
43002232032030
5101031422020
65022024352
71156610000
oct302561614
9116040835
1051045260
11268a5072
12151180b8
13a7630c6
146aca700
1547347c5
hex30ae38c

51045260 has 60 divisors (see below), whose sum is σ = 125171088. Its totient is φ = 17484768.

The previous prime is 51045209. The next prime is 51045301. The reversal of 51045260 is 6254015.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47489 + ... + 48551.

Almost surely, 251045260 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 51045260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62585544).

51045260 is an abundant number, since it is smaller than the sum of its proper divisors (74125828).

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

51045260 is a wasteful number, since it uses less digits than its factorization.

51045260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 51045260 is about 7144.5965596386. The cubic root of 51045260 is about 370.9526461455.

Adding to 51045260 its reverse (6254015), we get a palindrome (57299275).

The spelling of 51045260 in words is "fifty-one million, forty-five thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 343 490 686 980 1063 1372 1715 2126 2401 3430 4252 4802 5315 6860 7441 9604 10630 12005 14882 21260 24010 29764 37205 48020 52087 74410 104174 148820 208348 260435 364609 520870 729218 1041740 1458436 1823045 2552263 3646090 5104526 7292180 10209052 12761315 25522630 51045260