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213330012 = 22373768639
BaseRepresentation
bin11001011011100…
…10100001011100
3112212102021202120
430231302201130
5414103030022
633100222540
75200163250
oct1455624134
9485367676
10213330012
11aa467aa5
125b53aa50
133527379c
1420492260
1513addd5c
hexcb7285c

213330012 has 48 divisors (see below), whose sum is σ = 584263680. Its totient is φ = 59303232.

The previous prime is 213329983. The next prime is 213330023. The reversal of 213330012 is 210033312.

213330012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213329973 and 213330000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31212 + ... + 37427.

It is an arithmetic number, because the mean of its divisors is an integer number (12172160).

Almost surely, 2213330012 is an apocalyptic number.

It is an amenable number.

213330012 is an abundant number, since it is smaller than the sum of its proper divisors (370933668).

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

213330012 is a wasteful number, since it uses less digits than its factorization.

213330012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68690 (or 68688 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 213330012 is about 14605.8211682877. The cubic root of 213330012 is about 597.5175319751.

Adding to 213330012 its reverse (210033312), we get a palindrome (423363324).

It can be divided in two parts, 2133300 and 12, that added together give a palindrome (2133312).

The spelling of 213330012 in words is "two hundred thirteen million, three hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 111 148 222 259 444 518 777 1036 1554 3108 68639 137278 205917 274556 411834 480473 823668 960946 1441419 1921892 2539643 2882838 5079286 5765676 7618929 10158572 15237858 17777501 30475716 35555002 53332503 71110004 106665006 213330012