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223123130 = 251743131233
BaseRepresentation
bin11010100110010…
…01011010111010
3120112211211101122
431103021122322
5424104420010
634050145242
75346341516
oct1523113272
9515754348
10223123130
11104a4678a
1262882222
13372c2129
14218c1146
15148c5855
hexd4c96ba

223123130 has 64 divisors (see below), whose sum is σ = 440339328. Its totient is φ = 81070080.

The previous prime is 223123127. The next prime is 223123139. The reversal of 223123130 is 31321322.

It is a super-3 number, since 3×2231231303 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 223123099 and 223123108.

It is not an unprimeable number, because it can be changed into a prime (223123139) 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, 957494 + ... + 957726.

It is an arithmetic number, because the mean of its divisors is an integer number (6880302).

Almost surely, 2223123130 is an apocalyptic number.

223123130 is a deficient number, since it is larger than the sum of its proper divisors (217216198).

223123130 is a wasteful number, since it uses less digits than its factorization.

223123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 223123130 is about 14937.3066514683. The cubic root of 223123130 is about 606.5242896708.

Adding to 223123130 its reverse (31321322), we get a palindrome (254444452).

The spelling of 223123130 in words is "two hundred twenty-three million, one hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 43 85 86 131 170 215 233 262 430 466 655 731 1165 1310 1462 2227 2330 3655 3961 4454 5633 7310 7922 10019 11135 11266 19805 20038 22270 28165 30523 39610 50095 56330 61046 95761 100190 152615 170323 191522 305230 340646 478805 518891 851615 957610 1037782 1312489 1703230 2594455 2624978 5188910 6562445 13124890 22312313 44624626 111561565 223123130