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54171693 = 3323831051
BaseRepresentation
bin1100111010100…
…1100000101101
310202221012121000
43032221200231
5102331443233
65213030513
71225310652
oct316514055
9122835530
1054171693
112863aaa4
1216185439
13b2b9174
1472a1c29
154b50d13
hex33a982d

54171693 has 32 divisors (see below), whose sum is σ = 84833280. Its totient is φ = 34095600.

The previous prime is 54171659. The next prime is 54171727. The reversal of 54171693 is 39617145.

54171693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54171659) and next prime (54171727).

It is not a de Polignac number, because 54171693 - 29 = 54171181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54171613) 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 31 ways as a sum of consecutive naturals, for example, 51018 + ... + 52068.

It is an arithmetic number, because the mean of its divisors is an integer number (2651040).

Almost surely, 254171693 is an apocalyptic number.

It is an amenable number.

54171693 is a deficient number, since it is larger than the sum of its proper divisors (30661587).

54171693 is a wasteful number, since it uses less digits than its factorization.

54171693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1160 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 54171693 is about 7360.1421861266. The cubic root of 54171693 is about 378.3764830540.

The spelling of 54171693 in words is "fifty-four million, one hundred seventy-one thousand, six hundred ninety-three".

Divisors: 1 3 9 23 27 69 83 207 249 621 747 1051 1909 2241 3153 5727 9459 17181 24173 28377 51543 72519 87233 217557 261699 652671 785097 2006359 2355291 6019077 18057231 54171693