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54934993 = 127432559
BaseRepresentation
bin1101000110001…
…1110111010001
310211100222122101
43101203313101
5103030404433
65241240401
71234640221
oct321436721
9124328571
1054934993
1129011523
1216493101
13b4c5719
147420081
154c5207d
hex3463dd1

54934993 has 4 divisors (see below), whose sum is σ = 55367680. Its totient is φ = 54502308.

The previous prime is 54934987. The next prime is 54935003. The reversal of 54934993 is 39943945.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39943945 = 57988789.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54934993 is a prime.

It is a super-3 number, since 3×549349933 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54974993) 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, 216153 + ... + 216406.

It is an arithmetic number, because the mean of its divisors is an integer number (13841920).

Almost surely, 254934993 is an apocalyptic number.

It is an amenable number.

54934993 is a deficient number, since it is larger than the sum of its proper divisors (432687).

54934993 is a wasteful number, since it uses less digits than its factorization.

54934993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432686.

The product of its digits is 524880, while the sum is 46.

The square root of 54934993 is about 7411.8144202348. The cubic root of 54934993 is about 380.1453575948.

The spelling of 54934993 in words is "fifty-four million, nine hundred thirty-four thousand, nine hundred ninety-three".

Divisors: 1 127 432559 54934993