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54179993 = 78393253
BaseRepresentation
bin1100111010101…
…1100010011001
310202221121222102
43032223202121
5102332224433
65213133145
71225344110
oct316534231
9122847872
1054179993
112864625a
121618a1b5
13b2bcb8a
1472a4c77
154b534e8
hex33ab899

54179993 has 8 divisors (see below), whose sum is σ = 62666688. Its totient is φ = 45879984.

The previous prime is 54179981. The next prime is 54179999. The reversal of 54179993 is 39997145.

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 54179993 - 26 = 54179929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54179999) 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, 46046 + ... + 47207.

It is an arithmetic number, because the mean of its divisors is an integer number (7833336).

Almost surely, 254179993 is an apocalyptic number.

It is an amenable number.

54179993 is a deficient number, since it is larger than the sum of its proper divisors (8486695).

54179993 is an equidigital number, since it uses as much as digits as its factorization.

54179993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93343.

The product of its digits is 306180, while the sum is 47.

The square root of 54179993 is about 7360.7060123333. The cubic root of 54179993 is about 378.3958065804.

The spelling of 54179993 in words is "fifty-four million, one hundred seventy-nine thousand, nine hundred ninety-three".

Divisors: 1 7 83 581 93253 652771 7739999 54179993