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55083515 = 513078429
BaseRepresentation
bin1101001000100…
…0000111111011
310211122112101012
43102020013323
5103100133030
65244344135
71236126224
oct322100773
9124575335
1055083515
1129103073
121654504b
13b5481c6
14745c24b
154c81095
hex34881fb

55083515 has 8 divisors (see below), whose sum is σ = 66158640. Its totient is φ = 44027872.

The previous prime is 55083467. The next prime is 55083517. The reversal of 55083515 is 51538055.

55083515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55083515 - 210 = 55082491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55083517) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2321 + ... + 10749.

It is an arithmetic number, because the mean of its divisors is an integer number (8269830).

Almost surely, 255083515 is an apocalyptic number.

55083515 is a deficient number, since it is larger than the sum of its proper divisors (11075125).

55083515 is a wasteful number, since it uses less digits than its factorization.

55083515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 55083515 is about 7421.8269314233. The cubic root of 55083515 is about 380.4876357457.

The spelling of 55083515 in words is "fifty-five million, eighty-three thousand, five hundred fifteen".

Divisors: 1 5 1307 6535 8429 42145 11016703 55083515