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20231223324 = 22313891457161
BaseRepresentation
bin10010110101110111…
…111111100000011100
31221012221121122000120
4102311313333200130
5312413143121244
613143305154540
71314230363244
oct226567774034
957187548016
1020231223324
118641aa8584
123b0748ba50
131ba5574980
14d9ccb4b24
157d61e1819
hex4b5dff81c

20231223324 has 48 divisors (see below), whose sum is σ = 51408675360. Its totient is φ = 6155043840.

The previous prime is 20231223323. The next prime is 20231223329. The reversal of 20231223324 is 42332213202.

It is a junction number, because it is equal to n+sod(n) for n = 20231223294 and 20231223303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231223323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714697 + ... + 742464.

It is an arithmetic number, because the mean of its divisors is an integer number (1071014070).

Almost surely, 220231223324 is an apocalyptic number.

It is an amenable number.

20231223324 is an abundant number, since it is smaller than the sum of its proper divisors (31177452036).

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

20231223324 is a wasteful number, since it uses less digits than its factorization.

20231223324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457270 (or 1457268 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20231223324 its reverse (42332213202), we get a palindrome (62563436526).

The spelling of 20231223324 in words is "twenty billion, two hundred thirty-one million, two hundred twenty-three thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 89 156 178 267 356 534 1068 1157 2314 3471 4628 6942 13884 1457161 2914322 4371483 5828644 8742966 17485932 18943093 37886186 56829279 75772372 113658558 129687329 227317116 259374658 389061987 518749316 778123974 1556247948 1685935277 3371870554 5057805831 6743741108 10115611662 20231223324