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54975447 = 3224232521
BaseRepresentation
bin1101000110110…
…1101111010111
310211110001010200
43101231233113
5103033203242
65242151543
71235166162
oct321555727
9124401120
1054975447
112903995a
12164b25b3
13b50ac67
147430ad9
154c5e04c
hex346dbd7

54975447 has 12 divisors (see below), whose sum is σ = 79473264. Its totient is φ = 36620640.

The previous prime is 54975439. The next prime is 54975449. The reversal of 54975447 is 74457945.

It is not a de Polignac number, because 54975447 - 23 = 54975439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54975449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20547 + ... + 23067.

It is an arithmetic number, because the mean of its divisors is an integer number (6622772).

Almost surely, 254975447 is an apocalyptic number.

54975447 is a deficient number, since it is larger than the sum of its proper divisors (24497817).

54975447 is a wasteful number, since it uses less digits than its factorization.

54975447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950 (or 4947 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 54975447 is about 7414.5429393861. The cubic root of 54975447 is about 380.2386474156.

The spelling of 54975447 in words is "fifty-four million, nine hundred seventy-five thousand, four hundred forty-seven".

Divisors: 1 3 9 2423 2521 7269 7563 21807 22689 6108383 18325149 54975447