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54394671 = 318131557
BaseRepresentation
bin1100111101111…
…1111100101111
310210100112110110
43033133330233
5102411112141
65221511103
71230230022
oct317377457
9123315413
1054394671
1128782581
1216272493
13b3667c6
14731d1b9
154b96e16
hex33dff2f

54394671 has 4 divisors (see below), whose sum is σ = 72526232. Its totient is φ = 36263112.

The previous prime is 54394667. The next prime is 54394721. The reversal of 54394671 is 17649345.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 54394671 - 22 = 54394667 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 (54394621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9065776 + ... + 9065781.

It is an arithmetic number, because the mean of its divisors is an integer number (18131558).

Almost surely, 254394671 is an apocalyptic number.

54394671 is a deficient number, since it is larger than the sum of its proper divisors (18131561).

54394671 is a wasteful number, since it uses less digits than its factorization.

54394671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131560.

The product of its digits is 90720, while the sum is 39.

The square root of 54394671 is about 7375.2742999837. The cubic root of 54394671 is about 378.8949219399.

The spelling of 54394671 in words is "fifty-four million, three hundred ninety-four thousand, six hundred seventy-one".

Divisors: 1 3 18131557 54394671