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20231022000 = 243537268813
BaseRepresentation
bin10010110101110111…
…001110010110110000
31221012221020101212010
4102311313032112300
5312413120201000
613143301002520
71314225564300
oct226567162660
957187211763
1020231022000
1186419802a2
123b073b3440
131ba5504147
14d9cc61600
157d61a1d50
hex4b5dce5b0

20231022000 has 240 divisors, whose sum is σ = 75874866912. Its totient is φ = 4624166400.

The previous prime is 20231021977. The next prime is 20231022013. The reversal of 20231022000 is 22013202.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

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 47 ways as a sum of consecutive naturals, for example, 259594 + ... + 328406.

Almost surely, 220231022000 is an apocalyptic number.

20231022000 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 20231022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37937433456).

20231022000 is an abundant number, since it is smaller than the sum of its proper divisors (55643844912).

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

20231022000 is a wasteful number, since it uses less digits than its factorization.

20231022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68853 (or 68830 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20231022000 its reverse (22013202), we get a palindrome (20253035202).

The spelling of 20231022000 in words is "twenty billion, two hundred thirty-one million, twenty-two thousand".