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2010102020021 = 19905471168397
BaseRepresentation
bin11101010000000011011…
…010101011011110110101
321010011102110120122020202
4131100003122223132311
5230413142104120041
64135232250210245
7265140126154334
oct35200332533665
97104373518222
102010102020021
11705530206a67
122856a3123985
13117723421904
146d40a3abd1b
1537449cdda9b
hex1d4036ab7b5

2010102020021 has 8 divisors (see below), whose sum is σ = 2115922042080. Its totient is φ = 1904284515888.

The previous prime is 2010102019987. The next prime is 2010102020027. The reversal of 2010102020021 is 1200202010102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2010102020021 - 210 = 2010102018997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010102019984 and 2010102020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010102020027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136195 + ... + 2304591.

It is an arithmetic number, because the mean of its divisors is an integer number (264490255260).

Almost surely, 22010102020021 is an apocalyptic number.

It is an amenable number.

2010102020021 is a deficient number, since it is larger than the sum of its proper divisors (105820022059).

2010102020021 is a wasteful number, since it uses less digits than its factorization.

2010102020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258963.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2010102020021 its reverse (1200202010102), we get a palindrome (3210304030123).

The spelling of 2010102020021 in words is "two trillion, ten billion, one hundred two million, twenty thousand, twenty-one".

Divisors: 1 19 90547 1168397 1720393 22199543 105794843159 2010102020021