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2020323131100 = 2232528921671697
BaseRepresentation
bin11101011001100100101…
…001000111111011011100
321011010210210101212202100
4131121210221013323130
5231100110210143400
64144042412125100
7265651330161111
oct35314451077334
97133723355670
102020323131100
117098a5812aaa
12287676166790
13118691b78431
146dad9a4a908
15378472c6100
hex1d664a47edc

2020323131100 has 324 divisors, whose sum is σ = 6446689979184. Its totient is φ = 529197588480.

The previous prime is 2020323131081. The next prime is 2020323131107. The reversal of 2020323131100 is 11313230202.

2020323131100 is a `hidden beast` number, since 202 + 0 + 323 + 131 + 10 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020323131107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1190525452 + ... + 1190527148.

Almost surely, 22020323131100 is an apocalyptic number.

2020323131100 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 2020323131100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3223344989592).

2020323131100 is an abundant number, since it is smaller than the sum of its proper divisors (4426366848084).

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

2020323131100 is a wasteful number, since it uses less digits than its factorization.

2020323131100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 1963 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2020323131100 its reverse (11313230202), we get a palindrome (2031636361302).

The spelling of 2020323131100 in words is "two trillion, twenty billion, three hundred twenty-three million, one hundred thirty-one thousand, one hundred".