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51414261 = 3155910993
BaseRepresentation
bin1100010000100…
…0010011110101
310120202010002220
43010020103311
5101130224021
65033552553
71163004543
oct304102365
9116663086
1051414261
1127027328
1215275759
13a862052
146b84d93
1547a8cc6
hex31084f5

51414261 has 8 divisors (see below), whose sum is σ = 68602560. Its totient is φ = 34251072.

The previous prime is 51414241. The next prime is 51414281. The reversal of 51414261 is 16241415.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51414241) and next prime (51414281).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51414261 - 25 = 51414229 is a prime.

It is a super-2 number, since 2×514142612 = 5286852468352242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51414241) 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, 820 + ... + 10173.

It is an arithmetic number, because the mean of its divisors is an integer number (8575320).

Almost surely, 251414261 is an apocalyptic number.

It is an amenable number.

51414261 is a deficient number, since it is larger than the sum of its proper divisors (17188299).

51414261 is a wasteful number, since it uses less digits than its factorization.

51414261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12555.

The product of its digits is 960, while the sum is 24.

The square root of 51414261 is about 7170.3738396265. The cubic root of 51414261 is about 371.8443605479.

Adding to 51414261 its reverse (16241415), we get a palindrome (67655676).

The spelling of 51414261 in words is "fifty-one million, four hundred fourteen thousand, two hundred sixty-one".

Divisors: 1 3 1559 4677 10993 32979 17138087 51414261