Base | Representation |
---|---|
bin | 101110010100000… |
… | …0010100100001111 |
3 | 11000022010101102212 |
4 | 1130220002210033 |
5 | 11140311001033 |
6 | 414111341035 |
7 | 53336532443 |
oct | 13450024417 |
9 | 4008111385 |
10 | 1554000143 |
11 | 728213343 |
12 | 37452177b |
13 | 1b9c4b317 |
14 | 10a55c823 |
15 | 91664748 |
hex | 5ca0290f |
1554000143 has 4 divisors (see below), whose sum is σ = 1557508488. Its totient is φ = 1550491800.
The previous prime is 1554000137. The next prime is 1554000157. The reversal of 1554000143 is 3410004551.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3410004551 = 17 ⋅200588503.
It is a cyclic number.
It is not a de Polignac number, because 1554000143 - 210 = 1553999119 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 (1554008143) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1753508 + ... + 1754393.
It is an arithmetic number, because the mean of its divisors is an integer number (389377122).
Almost surely, 21554000143 is an apocalyptic number.
1554000143 is a deficient number, since it is larger than the sum of its proper divisors (3508345).
1554000143 is an equidigital number, since it uses as much as digits as its factorization.
1554000143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3508344.
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 1554000143 is about 39420.8085026170. The cubic root of 1554000143 is about 1158.2892298282.
Adding to 1554000143 its reverse (3410004551), we get a palindrome (4964004694).
The spelling of 1554000143 in words is "one billion, five hundred fifty-four million, one hundred forty-three", and thus it is an aban number.
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