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20202312000 = 263531373887
BaseRepresentation
bin10010110100001001…
…101101000101000000
31221010221012210010210
4102310021231011000
5312333242441000
613140353354120
71313426550543
oct226411550500
957127183123
1020202312000
118627751022
123ab9868940
131b9c591390
14d9910a85a
157d38d0350
hex4b426d140

20202312000 has 448 divisors, whose sum is σ = 72905624064. Its totient is φ = 4899225600.

The previous prime is 20202311999. The next prime is 20202312007. The reversal of 20202312000 is 21320202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202312007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22775557 + ... + 22776443.

It is an arithmetic number, because the mean of its divisors is an integer number (162735768).

Almost surely, 220202312000 is an apocalyptic number.

20202312000 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 20202312000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36452812032).

20202312000 is an abundant number, since it is smaller than the sum of its proper divisors (52703312064).

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

20202312000 is a wasteful number, since it uses less digits than its factorization.

20202312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 983 counting only the distinct ones).

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

Adding to 20202312000 its reverse (21320202), we get a palindrome (20223632202).

The spelling of 20202312000 in words is "twenty billion, two hundred two million, three hundred twelve thousand".