Base | Representation |
---|---|
bin | 101110010100001… |
… | …1110001110010111 |
3 | 11000022100010211201 |
4 | 1130220132032113 |
5 | 11140323112211 |
6 | 414114013331 |
7 | 53340513643 |
oct | 13450361627 |
9 | 4008303751 |
10 | 1554113431 |
11 | 728290472 |
12 | 374577247 |
13 | 1b9c8aa60 |
14 | 10a58bc23 |
15 | 916880c1 |
hex | 5ca1e397 |
1554113431 has 8 divisors (see below), whose sum is σ = 1675270800. Its totient is φ = 1433186112.
The previous prime is 1554113413. The next prime is 1554113443. The reversal of 1554113431 is 1343114551.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1554113431 - 25 = 1554113399 is a prime.
It is a super-2 number, since 2×15541134312 = 4830537112829183522, which 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 1554113431.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1554113401) 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 7 ways as a sum of consecutive naturals, for example, 43345 + ... + 70618.
It is an arithmetic number, because the mean of its divisors is an integer number (209408850).
Almost surely, 21554113431 is an apocalyptic number.
1554113431 is a deficient number, since it is larger than the sum of its proper divisors (121157369).
1554113431 is a wasteful number, since it uses less digits than its factorization.
1554113431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 115025.
The product of its digits is 3600, while the sum is 28.
The square root of 1554113431 is about 39422.2453825248. The cubic root of 1554113431 is about 1158.3173759178.
Adding to 1554113431 its reverse (1343114551), we get a palindrome (2897227982).
The spelling of 1554113431 in words is "one billion, five hundred fifty-four million, one hundred thirteen thousand, four hundred thirty-one".
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