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51414415 = 513790991
BaseRepresentation
bin1100010000100…
…0010110001111
310120202010022121
43010020112033
5101130230130
65033553411
71163005153
oct304102617
9116663277
1051414415
1127027458
1215275867
13a862140
146b85063
1547a8d7a
hex310858f

51414415 has 8 divisors (see below), whose sum is σ = 66443328. Its totient is φ = 37967520.

The previous prime is 51414403. The next prime is 51414427. The reversal of 51414415 is 51441415.

It is an interprime number because it is at equal distance from previous prime (51414403) and next prime (51414427).

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

It is not a de Polignac number, because 51414415 - 25 = 51414383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51414415.

It is a congruent number.

It is an unprimeable number.

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, 395431 + ... + 395560.

It is an arithmetic number, because the mean of its divisors is an integer number (8305416).

Almost surely, 251414415 is an apocalyptic number.

51414415 is a deficient number, since it is larger than the sum of its proper divisors (15028913).

51414415 is a wasteful number, since it uses less digits than its factorization.

51414415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791009.

The product of its digits is 1600, while the sum is 25.

The square root of 51414415 is about 7170.3845782496. The cubic root of 51414415 is about 371.8447318066.

Subtracting 51414415 from its reverse (51441415), we obtain a cube (27000 = 303).

The spelling of 51414415 in words is "fifty-one million, four hundred fourteen thousand, four hundred fifteen".

Divisors: 1 5 13 65 790991 3954955 10282883 51414415