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55146183 = 318382061
BaseRepresentation
bin1101001001011…
…1011011000111
310211202201100020
43102113123013
5103104134213
65245550223
71236510021
oct322273307
9124681306
1055146183
1129146164
1216575373
13b56a8a1
147477011
154c94923
hex34976c7

55146183 has 4 divisors (see below), whose sum is σ = 73528248. Its totient is φ = 36764120.

The previous prime is 55146173. The next prime is 55146193. The reversal of 55146183 is 38164155.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55146173) and next prime (55146193).

It is a cyclic number.

It is not a de Polignac number, because 55146183 - 213 = 55137991 is a prime.

It is a super-2 number, since 2×551461832 = 6082202998938978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55146163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9191028 + ... + 9191033.

It is an arithmetic number, because the mean of its divisors is an integer number (18382062).

Almost surely, 255146183 is an apocalyptic number.

55146183 is a deficient number, since it is larger than the sum of its proper divisors (18382065).

55146183 is a wasteful number, since it uses less digits than its factorization.

55146183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18382064.

The product of its digits is 14400, while the sum is 33.

The square root of 55146183 is about 7426.0476028639. The cubic root of 55146183 is about 380.6318734688.

The spelling of 55146183 in words is "fifty-five million, one hundred forty-six thousand, one hundred eighty-three".

Divisors: 1 3 18382061 55146183