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223230202220 = 22529384879659
BaseRepresentation
bin1100111111100110001…
…1101001000101101100
3210100012022000020011102
43033321203221011230
512124133412432340
6250314525542232
722061565261044
oct3177143510554
9710168006142
10223230202220
11867426a1a33
123731b414978
1318086cab66c
14ab393b4724
155c17aa7215
hex33f98e916c

223230202220 has 24 divisors (see below), whose sum is σ = 484948371600. Its totient is φ = 86213043392.

The previous prime is 223230202213. The next prime is 223230202243. The reversal of 223230202220 is 22202032322.

It is a super-3 number, since 3×2232302022203 (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 223230202192 and 223230202201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192439250 + ... + 192440409.

It is an arithmetic number, because the mean of its divisors is an integer number (20206182150).

Almost surely, 2223230202220 is an apocalyptic number.

223230202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223230202220 is an abundant number, since it is smaller than the sum of its proper divisors (261718169380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223230202220 is a wasteful number, since it uses less digits than its factorization.

223230202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384879697 (or 384879695 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 223230202220 its reverse (22202032322), we get a palindrome (245432234542).

The spelling of 223230202220 in words is "two hundred twenty-three billion, two hundred thirty million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 384879659 769759318 1539518636 1924398295 3848796590 7697593180 11161510111 22323020222 44646040444 55807550555 111615101110 223230202220