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10202313031212 = 22319232967086937
BaseRepresentation
bin1001010001110110100100…
…1111100111111000101100
31100010022221201220002122110
42110131221033213320230
52314123314113444322
633410513343244020
72102043553625451
oct224355117477054
940108851802573
1010202313031212
11328385a806865
121189339ba9610
135900c6733003
14273b1a4b1828
1512a5bb4aec0c
hex947693e7e2c

10202313031212 has 96 divisors (see below), whose sum is σ = 27049453401600. Its totient is φ = 2975439785472.

The previous prime is 10202313031171. The next prime is 10202313031219. The reversal of 10202313031212 is 21213031320201.

It is not an unprimeable number, because it can be changed into a prime (10202313031219) 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, 33391393 + ... + 33695544.

It is an arithmetic number, because the mean of its divisors is an integer number (281765139600).

Almost surely, 210202313031212 is an apocalyptic number.

10202313031212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10202313031212 is an abundant number, since it is smaller than the sum of its proper divisors (16847140370388).

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

10202313031212 is a wasteful number, since it uses less digits than its factorization.

10202313031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67087015 (or 67087013 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 10202313031212 its reverse (21213031320201), we get a palindrome (31415344351413).

The spelling of 10202313031212 in words is "ten trillion, two hundred two billion, three hundred thirteen million, thirty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 23 29 38 46 57 58 69 76 87 92 114 116 138 174 228 276 348 437 551 667 874 1102 1311 1334 1653 1748 2001 2204 2622 2668 3306 4002 5244 6612 8004 12673 25346 38019 50692 76038 152076 67086937 134173874 201260811 268347748 402521622 805043244 1274651803 1542999551 1945521173 2549303606 3085999102 3823955409 3891042346 4628998653 5098607212 5836563519 6171998204 7647910818 7782084692 9257997306 11673127038 15295821636 18515994612 23346254076 29316991469 36964902287 44746986979 58633982938 73929804574 87950974407 89493973958 110894706861 117267965876 134240960937 147859609148 175901948814 178987947916 221789413722 268481921874 351803897628 443578827444 536963843748 850192752601 1700385505202 2550578257803 3400771010404 5101156515606 10202313031212