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54161071 = 531021907
BaseRepresentation
bin1100111010011…
…0111010101111
310202220200000121
43032212322233
5102331123241
65212505411
71225234666
oct316467257
9122820017
1054161071
1128633018
121617b267
13b2b4393
14729bddd
154b4cad1
hex33a6eaf

54161071 has 4 divisors (see below), whose sum is σ = 55183032. Its totient is φ = 53139112.

The previous prime is 54161047. The next prime is 54161087. The reversal of 54161071 is 17016145.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17016145 = 53403229.

It is a cyclic number.

It is not a de Polignac number, because 54161071 - 29 = 54160559 is a prime.

It is a super-2 number, since 2×541610712 = 5866843223734082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 510901 + ... + 511006.

It is an arithmetic number, because the mean of its divisors is an integer number (13795758).

Almost surely, 254161071 is an apocalyptic number.

54161071 is a deficient number, since it is larger than the sum of its proper divisors (1021961).

54161071 is a wasteful number, since it uses less digits than its factorization.

54161071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021960.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 54161071 is about 7359.4205614301. The cubic root of 54161071 is about 378.3517507169.

The spelling of 54161071 in words is "fifty-four million, one hundred sixty-one thousand, seventy-one".

Divisors: 1 53 1021907 54161071