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2102301020 = 225263399677
BaseRepresentation
bin111110101001110…
…1001000101011100
312102111211221211202
41331103221011130
513301142113040
6544335335032
7103045156331
oct17523510534
95374757752
102102301020
1198976a966
124a8081478
13276715301
1415d2c8988
15c486e015
hex7d4e915c

2102301020 has 24 divisors (see below), whose sum is σ = 4431629664. Its totient is φ = 837720896.

The previous prime is 2102301013. The next prime is 2102301029. The reversal of 2102301020 is 201032012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2102300992 and 2102301010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102301029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194579 + ... + 205098.

It is an arithmetic number, because the mean of its divisors is an integer number (184651236).

Almost surely, 22102301020 is an apocalyptic number.

2102301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102301020 is an abundant number, since it is smaller than the sum of its proper divisors (2329328644).

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

2102301020 is a wasteful number, since it uses less digits than its factorization.

2102301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399949 (or 399947 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2102301020 is about 45850.8562624516. The cubic root of 2102301020 is about 1281.0467146210.

Adding to 2102301020 its reverse (201032012), we get a palindrome (2303333032).

The spelling of 2102301020 in words is "two billion, one hundred two million, three hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 263 526 1052 1315 2630 5260 399677 799354 1598708 1998385 3996770 7993540 105115051 210230102 420460204 525575255 1051150510 2102301020