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210012323020 = 225172292697307
BaseRepresentation
bin1100001110010110110…
…1011011110011001100
3202002002010020101121221
43003211231123303030
511420101123314040
6240251152533124
721113205202063
oct3034555336314
9662063211557
10210012323020
118107a532725
12348508511a4
1316a5b732676
14a243b311da
1556e246874a
hex30e5b5bccc

210012323020 has 48 divisors (see below), whose sum is σ = 469007915040. Its totient is φ = 78718178304.

The previous prime is 210012322999. The next prime is 210012323069. The reversal of 210012323020 is 20323210012.

It is a junction number, because it is equal to n+sod(n) for n = 210012322985 and 210012323003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270794 + ... + 1426513.

It is an arithmetic number, because the mean of its divisors is an integer number (9770998230).

Almost surely, 2210012323020 is an apocalyptic number.

210012323020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210012323020 is an abundant number, since it is smaller than the sum of its proper divisors (258995592020).

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

210012323020 is a wasteful number, since it uses less digits than its factorization.

210012323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697562 (or 2697560 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 210012323020 its reverse (20323210012), we get a palindrome (230335533032).

The spelling of 210012323020 in words is "two hundred ten billion, twelve million, three hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 229 340 458 916 1145 2290 3893 4580 7786 15572 19465 38930 77860 2697307 5394614 10789228 13486535 26973070 45854219 53946140 91708438 183416876 229271095 458542190 617683303 917084380 1235366606 2470733212 3088416515 6176833030 10500616151 12353666060 21001232302 42002464604 52503080755 105006161510 210012323020