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213303212320 = 25511121195007
BaseRepresentation
bin1100011010100111011…
…1001011100100100000
3202101120110121220001211
43012221313023210200
511443321110243240
6241553512035504
721260565250402
oct3065167134440
9671513556054
10213303212320
1182509114550
123540a992b94
1317164474b43
14a476c18b72
15583631bbea
hex31a9dcb920

213303212320 has 48 divisors (see below), whose sum is σ = 549740556288. Its totient is φ = 77564803840.

The previous prime is 213303212299. The next prime is 213303212341. The reversal of 213303212320 is 23212303312.

It is an interprime number because it is at equal distance from previous prime (213303212299) and next prime (213303212341).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 213303212291 and 213303212300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60595744 + ... + 60599263.

It is an arithmetic number, because the mean of its divisors is an integer number (11452928256).

Almost surely, 2213303212320 is an apocalyptic number.

213303212320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213303212320 is an abundant number, since it is smaller than the sum of its proper divisors (336437343968).

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

213303212320 is a wasteful number, since it uses less digits than its factorization.

213303212320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121195033 (or 121195025 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213303212320 its reverse (23212303312), we get a palindrome (236515515632).

The spelling of 213303212320 in words is "two hundred thirteen billion, three hundred three million, two hundred twelve thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 121195007 242390014 484780028 605975035 969560056 1211950070 1333145077 1939120112 2423900140 2666290154 3878240224 4847800280 5332580308 6665725385 9695600560 10665160616 13331450770 19391201120 21330321232 26662901540 42660642464 53325803080 106651606160 213303212320