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223213000 = 23532943179
BaseRepresentation
bin11010100110111…
…11010111001000
3120120000101200011
431103133113020
5424120304000
634052121304
75350164523
oct1523372710
9516011604
10223213000
11104aa825a
1262906234
1337323cca
1421905bba
15148e22ba
hexd4df5c8

223213000 has 128 divisors (see below), whose sum is σ = 555984000. Its totient is φ = 83731200.

The previous prime is 223212889. The next prime is 223213037. The reversal of 223213000 is 312322.

It is a happy number.

It is a super-3 number, since 3×2232130003 (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1246911 + ... + 1247089.

It is an arithmetic number, because the mean of its divisors is an integer number (4343625).

Almost surely, 2223213000 is an apocalyptic number.

223213000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223213000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277992000).

223213000 is an abundant number, since it is smaller than the sum of its proper divisors (332771000).

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

223213000 is a wasteful number, since it uses less digits than its factorization.

223213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 223213000 is about 14940.3145883880. The cubic root of 223213000 is about 606.6057111132.

Adding to 223213000 its reverse (312322), we get a palindrome (223525322).

The spelling of 223213000 in words is "two hundred twenty-three million, two hundred thirteen thousand".

Divisors: 1 2 4 5 8 10 20 25 29 40 43 50 58 86 100 116 125 145 172 179 200 215 232 250 290 344 358 430 500 580 716 725 860 895 1000 1075 1160 1247 1432 1450 1720 1790 2150 2494 2900 3580 3625 4300 4475 4988 5191 5375 5800 6235 7160 7250 7697 8600 8950 9976 10382 10750 12470 14500 15394 17900 20764 21500 22375 24940 25955 29000 30788 31175 35800 38485 41528 43000 44750 49880 51910 61576 62350 76970 89500 103820 124700 129775 153940 155875 179000 192425 207640 223213 249400 259550 307880 311750 384850 446426 519100 623500 648875 769700 892852 962125 1038200 1116065 1247000 1297750 1539400 1785704 1924250 2232130 2595500 3848500 4464260 5191000 5580325 7697000 8928520 11160650 22321300 27901625 44642600 55803250 111606500 223213000