Base | Representation |
---|---|
bin | 110011110111010001… |
… | …101000010111111101 |
3 | 12022202000011202110211 |
4 | 303313101220113331 |
5 | 1403022134423400 |
6 | 41325515232421 |
7 | 4011001622152 |
oct | 636721502775 |
9 | 168660152424 |
10 | 55688201725 |
11 | 216875a1212 |
12 | a961a48711 |
13 | 5336369770 |
14 | 29a3d78229 |
15 | 16ade3cdba |
hex | cf74685fd |
55688201725 has 12 divisors (see below), whose sum is σ = 74365168276. Its totient is φ = 41123594880.
The previous prime is 55688201713. The next prime is 55688201731. The reversal of 55688201725 is 52710288655.
It can be written as a sum of positive squares in 6 ways, for example, as 5378608921 + 50309592804 = 73339^2 + 224298^2 .
It is not a de Polignac number, because 55688201725 - 229 = 55151330813 is a prime.
It is a super-2 number, since 2×556882017252 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85673832 + ... + 85674481.
Almost surely, 255688201725 is an apocalyptic number.
It is an amenable number.
55688201725 is a deficient number, since it is larger than the sum of its proper divisors (18676966551).
55688201725 is a wasteful number, since it uses less digits than its factorization.
55688201725 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 171348336 (or 171348331 counting only the distinct ones).
The product of its (nonzero) digits is 1344000, while the sum is 49.
The spelling of 55688201725 in words is "fifty-five billion, six hundred eighty-eight million, two hundred one thousand, seven hundred twenty-five".
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