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212331030210 = 23351360493171
BaseRepresentation
bin1100010110111111101…
…0100110011011000010
3202022001201021220221000
43011233322212123002
511434323220431320
6241313222512430
721224521656255
oct3055772463302
9668051256830
10212331030210
118205a370762
1235199295716
131703ac27660
14a3c3a6d09c
1557cacd2c90
hex316fea66c2

212331030210 has 64 divisors (see below), whose sum is σ = 609771173760. Its totient is φ = 52266098880.

The previous prime is 212331030181. The next prime is 212331030211. The reversal of 212331030210 is 12030133212.

Adding to 212331030210 its reverse (12030133212), we get a palindrome (224361163422).

212331030210 is a `hidden beast` number, since 21 + 2 + 331 + 0 + 302 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212331030211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30243076 + ... + 30250095.

It is an arithmetic number, because the mean of its divisors is an integer number (9527674590).

Almost surely, 2212331030210 is an apocalyptic number.

212331030210 is an abundant number, since it is smaller than the sum of its proper divisors (397440143550).

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

212331030210 is a wasteful number, since it uses less digits than its factorization.

212331030210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60493200 (or 60493194 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The spelling of 212331030210 in words is "two hundred twelve billion, three hundred thirty-one million, thirty thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 1170 1755 3510 60493171 120986342 181479513 302465855 362959026 544438539 604931710 786411223 907397565 1088877078 1572822446 1633315617 1814795130 2359233669 2722192695 3266631234 3932056115 4718467338 5444385390 7077701007 7864112230 8166578085 11796168345 14155402014 16333156170 21233103021 23592336690 35388505035 42466206042 70777010070 106165515105 212331030210