Base | Representation |
---|---|
bin | 100001000111111… |
… | …011011001010101 |
3 | 1102201200211100001 |
4 | 201013323121111 |
5 | 2114231221141 |
6 | 131051051301 |
7 | 16525411435 |
oct | 4107733125 |
9 | 1381624301 |
10 | 555726421 |
11 | 265769538 |
12 | 136140b31 |
13 | 8b196b03 |
14 | 53b402c5 |
15 | 33bc4a31 |
hex | 211fb655 |
555726421 has 16 divisors (see below), whose sum is σ = 603208960. Its totient is φ = 510183360.
The previous prime is 555726419. The next prime is 555726427. The reversal of 555726421 is 124627555.
It is a 3-Lehmer number, since φ(555726421) divides (555726421-1)3.
It is a cyclic number.
It is not a de Polignac number, because 555726421 - 21 = 555726419 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (37).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (555726427) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189055 + ... + 191971.
It is an arithmetic number, because the mean of its divisors is an integer number (37700560).
It is a Poulet number, since it divides 2555726420-1.
Almost surely, 2555726421 is an apocalyptic number.
It is an amenable number.
555726421 is a deficient number, since it is larger than the sum of its proper divisors (47482539).
555726421 is a wasteful number, since it uses less digits than its factorization.
555726421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3244.
The product of its digits is 84000, while the sum is 37.
The square root of 555726421 is about 23573.8503643338. The cubic root of 555726421 is about 822.1549608893.
The spelling of 555726421 in words is "five hundred fifty-five million, seven hundred twenty-six thousand, four hundred twenty-one".
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