Search a number
-
+
54386390 = 255438639
BaseRepresentation
bin1100111101110…
…1111011010110
310210100010002202
43033131323112
5102410331030
65221404502
71230163622
oct317357326
9123303082
1054386390
1128777333
1216269732
13b362ac6
14731a182
154b94745
hex33dded6

54386390 has 8 divisors (see below), whose sum is σ = 97895520. Its totient is φ = 21754552.

The previous prime is 54386333. The next prime is 54386399. The reversal of 54386390 is 9368345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×543863903 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54386399) 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, 2719310 + ... + 2719329.

It is an arithmetic number, because the mean of its divisors is an integer number (12236940).

Almost surely, 254386390 is an apocalyptic number.

54386390 is a deficient number, since it is larger than the sum of its proper divisors (43509130).

54386390 is a wasteful number, since it uses less digits than its factorization.

54386390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5438646.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 54386390 is about 7374.7128757668. The cubic root of 54386390 is about 378.8756934136.

The spelling of 54386390 in words is "fifty-four million, three hundred eighty-six thousand, three hundred ninety".

Divisors: 1 2 5 10 5438639 10877278 27193195 54386390