Base | Representation |
---|---|
bin | 110010010100100101… |
… | …010101000101100101 |
3 | 12011110121112101121222 |
4 | 302110211111011211 |
5 | 1341124244434341 |
6 | 40453330150125 |
7 | 3621655000562 |
oct | 622445250545 |
9 | 164417471558 |
10 | 54032421221 |
11 | 20a07990879 |
12 | a57b422345 |
13 | 513130349c |
14 | 28880c3869 |
15 | 16138c144b |
hex | c94955165 |
54032421221 has 8 divisors (see below), whose sum is σ = 54800997120. Its totient is φ = 53265961008.
The previous prime is 54032421211. The next prime is 54032421239. The reversal of 54032421221 is 12212423045.
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 54032421221 - 214 = 54032404837 is a prime.
It is a super-2 number, since 2×540324212212 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54032421211) 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, 477446 + ... + 579671.
It is an arithmetic number, because the mean of its divisors is an integer number (6850124640).
Almost surely, 254032421221 is an apocalyptic number.
It is an amenable number.
54032421221 is a deficient number, since it is larger than the sum of its proper divisors (768575899).
54032421221 is a wasteful number, since it uses less digits than its factorization.
54032421221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1057843.
The product of its (nonzero) digits is 3840, while the sum is 26.
Adding to 54032421221 its reverse (12212423045), we get a palindrome (66244844266).
The spelling of 54032421221 in words is "fifty-four billion, thirty-two million, four hundred twenty-one thousand, two hundred twenty-one".
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