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30212332020 = 223351327115881
BaseRepresentation
bin11100001000110010…
…111001100111110100
32212222112211111011000
4130020302321213310
5443333324111040
621513535043300
72116455404433
oct341062714764
985875744130
1030212332020
11118a408a242
125a32070530
132b06379550
14166871b11a
15bbc5bc130
hex708cb99f4

30212332020 has 192 divisors, whose sum is σ = 101604142080. Its totient is φ = 7408972800.

The previous prime is 30212331971. The next prime is 30212332061. The reversal of 30212332020 is 2023321203.

It is a happy number.

30212332020 is a `hidden beast` number, since 302 + 1 + 23 + 320 + 20 = 666.

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 = 30212331984 and 30212332002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1894480 + ... + 1910360.

It is an arithmetic number, because the mean of its divisors is an integer number (529188240).

Almost surely, 230212332020 is an apocalyptic number.

30212332020 is a gapful number since it is divisible by the number (30) 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 30212332020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50802071040).

30212332020 is an abundant number, since it is smaller than the sum of its proper divisors (71391810060).

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

30212332020 is a wasteful number, since it uses less digits than its factorization.

30212332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16183 (or 16175 counting only the distinct ones).

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

Adding to 30212332020 its reverse (2023321203), we get a palindrome (32235653223).

The spelling of 30212332020 in words is "thirty billion, two hundred twelve million, three hundred thirty-two thousand, twenty".