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213331233332 = 22719139889909
BaseRepresentation
bin1100011010101110001…
…0000100101000110100
3202101122102100111200002
43012223202010220310
511443400243431312
6242000352410432
721261355364330
oct3065342045064
9671572314602
10213331233332
1182522a13108
1235418246a18
131716a206119
14a47a8307c0
155838a044c2
hex31ab884a34

213331233332 has 24 divisors (see below), whose sum is σ = 428896312320. Its totient is φ = 90948990240.

The previous prime is 213331233301. The next prime is 213331233337. The reversal of 213331233332 is 233332133312.

It is a super-2 number, since 2×2133312333322 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213331233295 and 213331233304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213331233337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19939607 + ... + 19950302.

It is an arithmetic number, because the mean of its divisors is an integer number (17870679680).

Almost surely, 2213331233332 is an apocalyptic number.

It is an amenable number.

213331233332 is an abundant number, since it is smaller than the sum of its proper divisors (215565078988).

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

213331233332 is a wasteful number, since it uses less digits than its factorization.

213331233332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39890111 (or 39890109 counting only the distinct ones).

The product of its digits is 17496, while the sum is 29.

Adding to 213331233332 its reverse (233332133312), we get a palindrome (446663366644).

The spelling of 213331233332 in words is "two hundred thirteen billion, three hundred thirty-one million, two hundred thirty-three thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 191 382 764 1337 2674 5348 39889909 79779818 159559636 279229363 558458726 1116917452 7618972619 15237945238 30475890476 53332808333 106665616666 213331233332