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210010012102020 = 22351331199152328657
BaseRepresentation
bin101111110000000011000100…
…001010111010110110000100
31000112120202112211101210101010
4233300003010022322312010
5210011301001044231040
62022353133452402220
762143502606306664
oct5760030412726604
91015522484353333
10210010012102020
1160a08822977849
121b679420176370
139024b22781110
1439c07787461a4
151942c97e80e80
hexbf00c42bad84

210010012102020 has 384 divisors, whose sum is σ = 657427909017600. Its totient is φ = 49741387407360.

The previous prime is 210010012102003. The next prime is 210010012102031. The reversal of 210010012102020 is 20201210010012.

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

It is a junction number, because it is equal to n+sod(n) for n = 210010012101987 and 210010012102005.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7328387532 + ... + 7328416188.

It is an arithmetic number, because the mean of its divisors is an integer number (1712051846400).

Almost surely, 2210010012102020 is an apocalyptic number.

210010012102020 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 210010012102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328713954508800).

210010012102020 is an abundant number, since it is smaller than the sum of its proper divisors (447417896915580).

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

210010012102020 is a wasteful number, since it uses less digits than its factorization.

210010012102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30435 (or 30433 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210010012102020 its reverse (20201210010012), we get a palindrome (230211222112032).

The spelling of 210010012102020 in words is "two hundred ten trillion, ten billion, twelve million, one hundred two thousand, twenty".