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213310120320 = 273251122714831
BaseRepresentation
bin1100011010101001000…
…1100010000110000000
3202101120221121212001200
43012222101202012000
511443324342322240
6241554320101200
721261011051343
oct3065221420600
9671527555050
10213310120320
1182512002640
1235411164800
1317165a2320b
14a477ad645a
155836c33930
hex31aa462180

213310120320 has 384 divisors, whose sum is σ = 807143201280. Its totient is φ = 51480268800.

The previous prime is 213310120291. The next prime is 213310120321. The reversal of 213310120320 is 23021013312.

213310120320 is a `hidden beast` number, since 2 + 1 + 331 + 0 + 12 + 0 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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 = 213310120293 and 213310120302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213310120321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14375305 + ... + 14390135.

It is an arithmetic number, because the mean of its divisors is an integer number (2101935420).

Almost surely, 2213310120320 is an apocalyptic number.

213310120320 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 213310120320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403571600640).

213310120320 is an abundant number, since it is smaller than the sum of its proper divisors (593833080960).

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

213310120320 is a wasteful number, since it uses less digits than its factorization.

213310120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15094 (or 15079 counting only the distinct ones).

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

Adding to 213310120320 its reverse (23021013312), we get a palindrome (236331133632).

The spelling of 213310120320 in words is "two hundred thirteen billion, three hundred ten million, one hundred twenty thousand, three hundred twenty".