Base | Representation |
---|---|
bin | 1100111000011… |
… | …0111101001101 |
3 | 10202200000102221 |
4 | 3032012331031 |
5 | 102312431112 |
6 | 5210015341 |
7 | 1224151216 |
oct | 316067515 |
9 | 122600387 |
10 | 54030157 |
11 | 28553725 |
12 | 16117551 |
13 | b26990c |
14 | 726640d |
15 | 4b23e07 |
hex | 3386f4d |
54030157 has 4 divisors (see below), whose sum is σ = 54310300. Its totient is φ = 53750016.
The previous prime is 54030143. The next prime is 54030187. The reversal of 54030157 is 75103045.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75103045 = 5 ⋅15020609.
It can be written as a sum of positive squares in 2 ways, for example, as 15515721 + 38514436 = 3939^2 + 6206^2 .
It is a cyclic number.
It is not a de Polignac number, because 54030157 - 211 = 54028109 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54030187) 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, 139782 + ... + 140167.
It is an arithmetic number, because the mean of its divisors is an integer number (13577575).
Almost surely, 254030157 is an apocalyptic number.
It is an amenable number.
54030157 is a deficient number, since it is larger than the sum of its proper divisors (280143).
54030157 is a wasteful number, since it uses less digits than its factorization.
54030157 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 280142.
The product of its (nonzero) digits is 2100, while the sum is 25.
The square root of 54030157 is about 7350.5208658979. The cubic root of 54030157 is about 378.0466637986.
The spelling of 54030157 in words is "fifty-four million, thirty thousand, one hundred fifty-seven".
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