Base | Representation |
---|---|
bin | 110010111101001011… |
… | …001000100111111001 |
3 | 12020020001221201201101 |
4 | 302331023020213321 |
5 | 1344023113422111 |
6 | 41045054251401 |
7 | 3644564253562 |
oct | 627513104771 |
9 | 166201851641 |
10 | 54713420281 |
11 | 21227332513 |
12 | a72b4b6b61 |
13 | 520c41c100 |
14 | 2910713169 |
15 | 165358dbc1 |
hex | cbd2c89f9 |
54713420281 has 27 divisors (see below), whose sum is σ = 62594311311. Its totient is φ = 47796029424.
The previous prime is 54713420273. The next prime is 54713420297. The reversal of 54713420281 is 18202431745.
The square root of 54713420281 is 233909.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 8093701225 + 46619719056 = 89965^2 + 215916^2 .
It is not a de Polignac number, because 54713420281 - 23 = 54713420273 is a prime.
It is a super-2 number, since 2×547134202812 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 54713420281.
It is not an unprimeable number, because it can be changed into a prime (54713420221) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 57775050 + ... + 57775996.
Almost surely, 254713420281 is an apocalyptic number.
54713420281 is the 233909-th square number.
54713420281 is the 116955-th centered octagonal number.
It is an amenable number.
54713420281 is a deficient number, since it is larger than the sum of its proper divisors (7880891030).
54713420281 is an frugal number, since it uses more digits than its factorization.
54713420281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1958 (or 979 counting only the distinct ones).
The product of its (nonzero) digits is 53760, while the sum is 37.
The spelling of 54713420281 in words is "fifty-four billion, seven hundred thirteen million, four hundred twenty thousand, two hundred eighty-one".
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