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55715383 = 373149371
BaseRepresentation
bin1101010010001…
…0011000110111
310212211122010201
43110202120313
5103230343013
65310101331
71244400343
oct324423067
9125748121
1055715383
11294a4879
12167aa847
13b7099a9
147584623
154d583dd
hex3522637

55715383 has 4 divisors (see below), whose sum is σ = 55865128. Its totient is φ = 55565640.

The previous prime is 55715323. The next prime is 55715389. The reversal of 55715383 is 38351755.

55715383 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.

It is a cyclic number.

It is not a de Polignac number, because 55715383 - 29 = 55714871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55715389) 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, 74313 + ... + 75058.

It is an arithmetic number, because the mean of its divisors is an integer number (13966282).

Almost surely, 255715383 is an apocalyptic number.

55715383 is a deficient number, since it is larger than the sum of its proper divisors (149745).

55715383 is a wasteful number, since it uses less digits than its factorization.

55715383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149744.

The product of its digits is 63000, while the sum is 37.

The square root of 55715383 is about 7464.2737757936. The cubic root of 55715383 is about 381.9369773501.

The spelling of 55715383 in words is "fifty-five million, seven hundred fifteen thousand, three hundred eighty-three".

Divisors: 1 373 149371 55715383