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212302232120 = 23511482505073
BaseRepresentation
bin1100010110111000110…
…0101111101000111000
3202021222201002211101002
43011232030233220320
511434243332411440
6241310313344132
721224022124646
oct3055614575070
9667881084332
10212302232120
1182045091290
123518b708048
1317034c83774
14a3bdcd4196
1557c84e5115
hex316e32fa38

212302232120 has 32 divisors (see below), whose sum is σ = 521105479920. Its totient is φ = 77200811520.

The previous prime is 212302232119. The next prime is 212302232123. The reversal of 212302232120 is 21232203212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212302232092 and 212302232101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212302232123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241252097 + ... + 241252976.

Almost surely, 2212302232120 is an apocalyptic number.

212302232120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212302232120 is an abundant number, since it is smaller than the sum of its proper divisors (308803247800).

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

212302232120 is a wasteful number, since it uses less digits than its factorization.

212302232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482505095 (or 482505091 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212302232120 its reverse (21232203212), we get a palindrome (233534435332).

The spelling of 212302232120 in words is "two hundred twelve billion, three hundred two million, two hundred thirty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 482505073 965010146 1930020292 2412525365 3860040584 4825050730 5307555803 9650101460 10615111606 19300202920 21230223212 26537779015 42460446424 53075558030 106151116060 212302232120