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20120210010 = 23251783125383
BaseRepresentation
bin10010101111010000…
…100000101001011010
31220221012201120101100
4102233100200221122
5312201233210020
613124301532230
71311411651255
oct225720405132
956835646340
1020120210010
11859537463a
123a96274076
131b88576314
14d8c25809c
157cb5b3a90
hex4af420a5a

20120210010 has 48 divisors (see below), whose sum is σ = 52342303104. Its totient is φ = 5362337376.

The previous prime is 20120210009. The next prime is 20120210029. The reversal of 20120210010 is 1001202102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20120209974 and 20120210001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97779 + ... + 223161.

It is an arithmetic number, because the mean of its divisors is an integer number (1090464648).

Almost surely, 220120210010 is an apocalyptic number.

20120210010 is an abundant number, since it is smaller than the sum of its proper divisors (32222093094).

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

20120210010 is a wasteful number, since it uses less digits than its factorization.

20120210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127179 (or 127176 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20120210010 its reverse (1001202102), we get a palindrome (21121412112).

The spelling of 20120210010 in words is "twenty billion, one hundred twenty million, two hundred ten thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1783 3566 5349 8915 10698 16047 17830 26745 32094 53490 80235 125383 160470 250766 376149 626915 752298 1128447 1253830 1880745 2256894 3761490 5642235 11284470 223557889 447115778 670673667 1117789445 1341347334 2012021001 2235578890 3353368335 4024042002 6706736670 10060105005 20120210010