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51488495 = 517679041
BaseRepresentation
bin1100010001101…
…0011011101111
310120212212221022
43010122123233
5101140112440
65035324355
71163434142
oct304323357
9116785838
1051488495
1127078083
12152b06bb
13a889a86
146ba4059
1547c0cb5
hex311a6ef

51488495 has 16 divisors (see below), whose sum is σ = 66404448. Its totient is φ = 38184960.

The previous prime is 51488491. The next prime is 51488509. The reversal of 51488495 is 59488415.

It is not a de Polignac number, because 51488495 - 22 = 51488491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51488491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175 + ... + 10215.

It is an arithmetic number, because the mean of its divisors is an integer number (4150278).

Almost surely, 251488495 is an apocalyptic number.

51488495 is a deficient number, since it is larger than the sum of its proper divisors (14915953).

51488495 is a wasteful number, since it uses less digits than its factorization.

51488495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9130.

The product of its digits is 230400, while the sum is 44.

The square root of 51488495 is about 7175.5484110972. The cubic root of 51488495 is about 372.0232358207.

The spelling of 51488495 in words is "fifty-one million, four hundred eighty-eight thousand, four hundred ninety-five".

Divisors: 1 5 17 67 85 335 1139 5695 9041 45205 153697 605747 768485 3028735 10297699 51488495