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20231202222 = 2337211695087
BaseRepresentation
bin10010110101110111…
…111010010110101110
31221012221120120002000
4102311313322112232
5312413141432342
613143304513130
71314230244600
oct226567722656
957187516060
1020231202222
118641a93740
123b0747b7a6
131ba556819a
14d9ccab170
157d61da44c
hex4b5dfa5ae

20231202222 has 96 divisors (see below), whose sum is σ = 57052823040. Its totient is φ = 5254850160.

The previous prime is 20231202221. The next prime is 20231202239. The reversal of 20231202222 is 22220213202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20231202195 and 20231202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231202221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318438 + ... + 376649.

It is an arithmetic number, because the mean of its divisors is an integer number (594300240).

Almost surely, 220231202222 is an apocalyptic number.

20231202222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20231202222 is an abundant number, since it is smaller than the sum of its proper divisors (36821620818).

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

20231202222 is a wasteful number, since it uses less digits than its factorization.

20231202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695123 (or 695110 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20231202222 its reverse (22220213202), we get a palindrome (42451415424).

The spelling of 20231202222 in words is "twenty billion, two hundred thirty-one million, two hundred two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 27 33 42 49 54 63 66 77 98 99 126 147 154 189 198 231 294 297 378 441 462 539 594 693 882 1078 1323 1386 1617 2079 2646 3234 4158 4851 9702 14553 29106 695087 1390174 2085261 4170522 4865609 6255783 7645957 9731218 12511566 14596827 15291914 18767349 22937871 29193654 34059263 37534698 43790481 45875742 53521699 68118526 68813613 87580962 102177789 107043398 131371443 137627226 160565097 204355578 206440839 262742886 306533367 321130194 374651893 412881678 481695291 613066734 749303786 919600101 963390582 1123955679 1445085873 1839200202 2247911358 2890171746 3371867037 6743734074 10115601111 20231202222