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54455143 = 193283997
BaseRepresentation
bin1100111110111…
…0101101100111
310210110121102011
43033232231213
5102420031033
65223055051
71230601231
oct317565547
9123417364
1054455143
1128813a56
12162a1487
13b3881a2
147337251
154ba9ccd
hex33eeb67

54455143 has 8 divisors (see below), whose sum is σ = 54985808. Its totient is φ = 53927424.

The previous prime is 54455123. The next prime is 54455161. The reversal of 54455143 is 34155445.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54455143 - 217 = 54324071 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 (54455113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54121 + ... + 55117.

It is an arithmetic number, because the mean of its divisors is an integer number (6873226).

Almost surely, 254455143 is an apocalyptic number.

54455143 is a deficient number, since it is larger than the sum of its proper divisors (530665).

54455143 is a wasteful number, since it uses less digits than its factorization.

54455143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473.

The product of its digits is 24000, while the sum is 31.

The square root of 54455143 is about 7379.3728053270. The cubic root of 54455143 is about 379.0352791214.

The spelling of 54455143 in words is "fifty-four million, four hundred fifty-five thousand, one hundred forty-three".

Divisors: 1 193 283 997 54619 192421 282151 54455143