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212030332020 = 223451347214211
BaseRepresentation
bin1100010101110111111…
…1100001110001110100
3202021021202110212120000
43011131333201301310
511433214231111040
6241223321511300
721214211041203
oct3053577416164
9667252425500
10212030332020
1181a1565a761
1235114642530
1316cc0843b30
14a395b5723a
1557ae6d7130
hex315dfe1c74

212030332020 has 240 divisors, whose sum is σ = 731556258048. Its totient is φ = 51081373440.

The previous prime is 212030332013. The next prime is 212030332027. The reversal of 212030332020 is 20233030212.

It is a happy number.

212030332020 is a `hidden beast` number, since 2 + 1 + 20 + 303 + 320 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (212030332013) and next prime (212030332027).

It is a super-2 number, since 2×2120303320202 (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 212030331984 and 212030332002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030332027) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 882715 + ... + 1096925.

Almost surely, 2212030332020 is an apocalyptic number.

212030332020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212030332020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365778129024).

212030332020 is an abundant number, since it is smaller than the sum of its proper divisors (519525926028).

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

212030332020 is a wasteful number, since it uses less digits than its factorization.

212030332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214292 (or 214281 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 212030332020 its reverse (20233030212), we get a palindrome (232263362232).

The spelling of 212030332020 in words is "two hundred twelve billion, thirty million, three hundred thirty-two thousand, twenty".