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51141013 = 7114499
BaseRepresentation
bin1100001100010…
…1100110010101
310120020020021121
43003011212111
5101043003023
65024043541
71160456110
oct303054625
9116206247
1051141013
1126960000
12151635b1
13a797871
146b13577
154752d5d
hex30c5995

51141013 has 20 divisors (see below), whose sum is σ = 64420000. Its totient is φ = 39770280.

The previous prime is 51141011. The next prime is 51141037. The reversal of 51141013 is 31014115.

It is not a de Polignac number, because 51141013 - 21 = 51141011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51141011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 102238 + ... + 102736.

It is an arithmetic number, because the mean of its divisors is an integer number (3221000).

Almost surely, 251141013 is an apocalyptic number.

It is an amenable number.

51141013 is a deficient number, since it is larger than the sum of its proper divisors (13278987).

51141013 is an frugal number, since it uses more digits than its factorization.

51141013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 51141013 is about 7151.2944982010. The cubic root of 51141013 is about 371.1844511616.

Adding to 51141013 its reverse (31014115), we get a palindrome (82155128).

The spelling of 51141013 in words is "fifty-one million, one hundred forty-one thousand, thirteen".

Divisors: 1 7 11 77 121 499 847 1331 3493 5489 9317 14641 38423 60379 102487 422653 664169 4649183 7305859 51141013