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54160881 = 318053627
BaseRepresentation
bin1100111010011…
…0110111110001
310202220122202120
43032212313301
5102331122011
65212504453
71225234305
oct316466761
9122818676
1054160881
1128632965
121617b129
13b2b4278
14729bd05
154b4ca06
hex33a6df1

54160881 has 4 divisors (see below), whose sum is σ = 72214512. Its totient is φ = 36107252.

The previous prime is 54160871. The next prime is 54160891. The reversal of 54160881 is 18806145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (54160871) and next prime (54160891).

It is a cyclic number.

It is not a de Polignac number, because 54160881 - 210 = 54159857 is a prime.

It is a super-2 number, since 2×541608812 = 5866802061392322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54160871) 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, 9026811 + ... + 9026816.

It is an arithmetic number, because the mean of its divisors is an integer number (18053628).

Almost surely, 254160881 is an apocalyptic number.

It is an amenable number.

54160881 is a deficient number, since it is larger than the sum of its proper divisors (18053631).

54160881 is a wasteful number, since it uses less digits than its factorization.

54160881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18053630.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 54160881 is about 7359.4076527938. The cubic root of 54160881 is about 378.3513082901.

The spelling of 54160881 in words is "fifty-four million, one hundred sixty thousand, eight hundred eighty-one".

Divisors: 1 3 18053627 54160881