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51471055 = 510294211
BaseRepresentation
bin1100010001011…
…0001011001111
310120212000000101
43010112023033
5101134033210
65035111531
71163332246
oct304261317
9116760011
1051471055
1127065a69
12152a25a7
13a881b5c
146b9b95d
1547baa3a
hex31162cf

51471055 has 4 divisors (see below), whose sum is σ = 61765272. Its totient is φ = 41176840.

The previous prime is 51471047. The next prime is 51471061. The reversal of 51471055 is 55017415.

51471055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55017415 = 511003483.

It is not a de Polignac number, because 51471055 - 23 = 51471047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5147101 + ... + 5147110.

It is an arithmetic number, because the mean of its divisors is an integer number (15441318).

Almost surely, 251471055 is an apocalyptic number.

51471055 is a deficient number, since it is larger than the sum of its proper divisors (10294217).

51471055 is a wasteful number, since it uses less digits than its factorization.

51471055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294216.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 51471055 is about 7174.3330700491. Note that the first 3 decimals coincide. The cubic root of 51471055 is about 371.9812276148.

It can be divided in two parts, 514710 and 55, that multiplied together give a triangular number (28309050 = T7524).

The spelling of 51471055 in words is "fifty-one million, four hundred seventy-one thousand, fifty-five".

Divisors: 1 5 10294211 51471055