Search a number
-
+
55382142 = 239230357
BaseRepresentation
bin1101001101000…
…1000001111110
310212012201000110
43103101001332
5103134212032
65255010450
71241511654
oct323210176
9125181013
1055382142
1129297472
1216669a26
13b6210ca
1474d8dd4
154cde7cc
hex34d107e

55382142 has 8 divisors (see below), whose sum is σ = 110764296. Its totient is φ = 18460712.

The previous prime is 55382111. The next prime is 55382143. The reversal of 55382142 is 24128355.

55382142 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.

55382142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55382143) 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 3 ways as a sum of consecutive naturals, for example, 4615173 + ... + 4615184.

It is an arithmetic number, because the mean of its divisors is an integer number (13845537).

Almost surely, 255382142 is an apocalyptic number.

55382142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55382142 is a wasteful number, since it uses less digits than its factorization.

55382142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9230362.

The product of its digits is 9600, while the sum is 30.

The square root of 55382142 is about 7441.9178979615. The cubic root of 55382142 is about 381.1739824431.

The spelling of 55382142 in words is "fifty-five million, three hundred eighty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 9230357 18460714 27691071 55382142