Base | Representation |
---|---|
bin | 100100010111101… |
… | …0010000010101111 |
3 | 10011001022102021120 |
4 | 1020233102002233 |
5 | 4444402313343 |
6 | 321032232023 |
7 | 42145561014 |
oct | 11057220257 |
9 | 3131272246 |
10 | 1220354223 |
11 | 576949210 |
12 | 2a083b613 |
13 | 165a9cbba |
14 | b810b70b |
15 | 7220b683 |
hex | 48bd20af |
1220354223 has 8 divisors (see below), whose sum is σ = 1775060736. Its totient is φ = 739608600.
The previous prime is 1220354183. The next prime is 1220354251. The reversal of 1220354223 is 3224530221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1220354223 - 216 = 1220288687 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1220354193 and 1220354202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1220354273) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18490183 + ... + 18490248.
It is an arithmetic number, because the mean of its divisors is an integer number (221882592).
Almost surely, 21220354223 is an apocalyptic number.
1220354223 is a deficient number, since it is larger than the sum of its proper divisors (554706513).
1220354223 is a wasteful number, since it uses less digits than its factorization.
1220354223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36980445.
The product of its (nonzero) digits is 2880, while the sum is 24.
The square root of 1220354223 is about 34933.5687126294. The cubic root of 1220354223 is about 1068.6331348430.
Adding to 1220354223 its reverse (3224530221), we get a palindrome (4444884444).
The spelling of 1220354223 in words is "one billion, two hundred twenty million, three hundred fifty-four thousand, two hundred twenty-three".
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