Base | Representation |
---|---|
bin | 100100010111010… |
… | …1100011100101001 |
3 | 10011001000121001020 |
4 | 1020232230130221 |
5 | 4444332401413 |
6 | 321025043053 |
7 | 42144350040 |
oct | 11056543451 |
9 | 3131017036 |
10 | 1220200233 |
11 | 57685354a |
12 | 2a0786489 |
13 | 165a47a95 |
14 | b80ab557 |
15 | 721cac23 |
hex | 48bac729 |
1220200233 has 32 divisors (see below), whose sum is σ = 1881470976. Its totient is φ = 689015808.
The previous prime is 1220200231. The next prime is 1220200243. The reversal of 1220200233 is 3320020221.
It is not a de Polignac number, because 1220200233 - 21 = 1220200231 is a prime.
It is a super-2 number, since 2×12202002332 = 2977777217226508578, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1220200231) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659716 + ... + 661562.
It is an arithmetic number, because the mean of its divisors is an integer number (58795968).
Almost surely, 21220200233 is an apocalyptic number.
It is an amenable number.
1220200233 is a deficient number, since it is larger than the sum of its proper divisors (661270743).
1220200233 is a wasteful number, since it uses less digits than its factorization.
1220200233 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2213.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 1220200233 is about 34931.3646026032. The cubic root of 1220200233 is about 1068.5881845777.
Adding to 1220200233 its reverse (3320020221), we get a palindrome (4540220454).
The spelling of 1220200233 in words is "one billion, two hundred twenty million, two hundred thousand, two hundred thirty-three".
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