Base | Representation |
---|---|
bin | 100100011100101… |
… | …1101100110110110 |
3 | 10011020100000012021 |
4 | 1020321131212312 |
5 | 10001043214110 |
6 | 321205343354 |
7 | 42210344545 |
oct | 11071354666 |
9 | 3136300167 |
10 | 1223023030 |
11 | 578401339 |
12 | 2a1707b5a |
13 | 1664c5888 |
14 | b860415c |
15 | 725872da |
hex | 48e5d9b6 |
1223023030 has 32 divisors (see below), whose sum is σ = 2277108288. Its totient is φ = 472627200.
The previous prime is 1223023007. The next prime is 1223023057. The reversal of 1223023030 is 303203221.
It is a junction number, because it is equal to n+sod(n) for n = 1223022995 and 1223023013.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 27750 + ... + 56710.
It is an arithmetic number, because the mean of its divisors is an integer number (71159634).
Almost surely, 21223023030 is an apocalyptic number.
1223023030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1223023030 is a deficient number, since it is larger than the sum of its proper divisors (1054085258).
1223023030 is a wasteful number, since it uses less digits than its factorization.
1223023030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29112.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 1223023030 is about 34971.7461674421. The cubic root of 1223023030 is about 1069.4115697851.
Adding to 1223023030 its reverse (303203221), we get a palindrome (1526226251).
The spelling of 1223023030 in words is "one billion, two hundred twenty-three million, twenty-three thousand, thirty".
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