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54192993 = 318064331
BaseRepresentation
bin1100111010111…
…0101101100001
310202222021210220
43032232231201
5102333133433
65213313253
71225430031
oct316565541
9122867726
1054192993
1128654aa8
1216195829
13b2c5a7a
1472a98c1
154b572b3
hex33aeb61

54192993 has 4 divisors (see below), whose sum is σ = 72257328. Its totient is φ = 36128660.

The previous prime is 54192989. The next prime is 54193001. The reversal of 54192993 is 39929145.

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 a cyclic number.

It is not a de Polignac number, because 54192993 - 22 = 54192989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54190993) 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, 9032163 + ... + 9032168.

It is an arithmetic number, because the mean of its divisors is an integer number (18064332).

Almost surely, 254192993 is an apocalyptic number.

It is an amenable number.

54192993 is a deficient number, since it is larger than the sum of its proper divisors (18064335).

54192993 is a wasteful number, since it uses less digits than its factorization.

54192993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18064334.

The product of its digits is 87480, while the sum is 42.

The square root of 54192993 is about 7361.5890268338. The cubic root of 54192993 is about 378.4260683790.

The spelling of 54192993 in words is "fifty-four million, one hundred ninety-two thousand, nine hundred ninety-three".

Divisors: 1 3 18064331 54192993