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51741020 = 22510325117
BaseRepresentation
bin1100010101100…
…0000101011100
310121100201100002
43011120011130
5101221203040
65044553432
71165535312
oct305300534
9117321302
1051741020
112722a881
12153b2878
13a9479b6
146c2c0b2
154820a15
hex315815c

51741020 has 24 divisors (see below), whose sum is σ = 109715424. Its totient is φ = 20494656.

The previous prime is 51740999. The next prime is 51741023. The reversal of 51741020 is 2014715.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 51740983 and 51741001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51741023) 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, 10499 + ... + 14618.

It is an arithmetic number, because the mean of its divisors is an integer number (4571476).

Almost surely, 251741020 is an apocalyptic number.

It is an amenable number.

51741020 is an abundant number, since it is smaller than the sum of its proper divisors (57974404).

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

51741020 is a wasteful number, since it uses less digits than its factorization.

51741020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25229 (or 25227 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 51741020 is about 7193.1231047439. The cubic root of 51741020 is about 372.6304394316.

Adding to 51741020 its reverse (2014715), we get a palindrome (53755735).

The spelling of 51741020 in words is "fifty-one million, seven hundred forty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 25117 50234 100468 125585 251170 502340 2587051 5174102 10348204 12935255 25870510 51741020