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20230223310 = 23351143315731
BaseRepresentation
bin10010110101110100…
…001011010111001110
31221012212201211021000
4102311310023113032
5312412414121220
613143231521130
71314216026613
oct226564132716
957185654230
1020230223310
118641485220
123b070891a6
131ba52b474b
14d9cad450a
157d6095390
hex4b5d0b5ce

20230223310 has 128 divisors (see below), whose sum is σ = 58991224320. Its totient is φ = 4892659200.

The previous prime is 20230223297. The next prime is 20230223353. The reversal of 20230223310 is 1332203202.

It is a happy number.

It is a super-2 number, since 2×202302233102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1278145 + ... + 1293875.

It is an arithmetic number, because the mean of its divisors is an integer number (460868940).

Almost surely, 220230223310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20230223310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29495612160).

20230223310 is an abundant number, since it is smaller than the sum of its proper divisors (38761001010).

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

20230223310 is a wasteful number, since it uses less digits than its factorization.

20230223310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191 (or 16185 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20230223310 its reverse (1332203202), we get a palindrome (21562426512).

The spelling of 20230223310 in words is "twenty billion, two hundred thirty million, two hundred twenty-three thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 90 99 110 135 165 198 270 297 330 433 495 594 866 990 1299 1485 2165 2598 2970 3897 4330 4763 6495 7794 9526 11691 12990 14289 15731 19485 23382 23815 28578 31462 38970 42867 47193 47630 58455 71445 78655 85734 94386 116910 128601 141579 142890 157310 173041 214335 235965 257202 283158 346082 424737 428670 471930 519123 643005 707895 849474 865205 1038246 1286010 1415790 1557369 1730410 2123685 2595615 3114738 4247370 4672107 5191230 6811523 7786845 9344214 13623046 15573690 20434569 23360535 34057615 40869138 46721070 61303707 68115230 74926753 102172845 122607414 149853506 183911121 204345690 224780259 306518535 367822242 374633765 449560518 613037070 674340777 749267530 919555605 1123901295 1348681554 1839111210 2023022331 2247802590 3371703885 4046044662 6743407770 10115111655 20230223310