Base | Representation |
---|---|
bin | 100001000001110… |
… | …011111101111011 |
3 | 1102121200101000221 |
4 | 201001303331323 |
5 | 2113323420011 |
6 | 130552440511 |
7 | 16505653222 |
oct | 4101637573 |
9 | 1377611027 |
10 | 554123131 |
11 | 264873a01 |
12 | 1356a9137 |
13 | 8aa55113 |
14 | 53843cb9 |
15 | 339a9971 |
hex | 21073f7b |
554123131 has 4 divisors (see below), whose sum is σ = 554253552. Its totient is φ = 553992712.
The previous prime is 554123113. The next prime is 554123149. The reversal of 554123131 is 131321455.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131321455 = 5 ⋅26264291.
It is an interprime number because it is at equal distance from previous prime (554123113) and next prime (554123149).
It is a cyclic number.
It is not a de Polignac number, because 554123131 - 223 = 545734523 is a prime.
It is a super-2 number, since 2×5541231312 = 614104888618486322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 554123096 and 554123105.
It is not an unprimeable number, because it can be changed into a prime (554123161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58615 + ... + 67408.
It is an arithmetic number, because the mean of its divisors is an integer number (138563388).
Almost surely, 2554123131 is an apocalyptic number.
554123131 is a deficient number, since it is larger than the sum of its proper divisors (130421).
554123131 is a wasteful number, since it uses less digits than its factorization.
554123131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 130420.
The product of its digits is 1800, while the sum is 25.
The square root of 554123131 is about 23539.8201140111. The cubic root of 554123131 is about 821.3635507925.
Adding to 554123131 its reverse (131321455), we get a palindrome (685444586).
The spelling of 554123131 in words is "five hundred fifty-four million, one hundred twenty-three thousand, one hundred thirty-one".
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