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213440213504 = 29759553631
BaseRepresentation
bin1100011011001000000…
…1110011001000000000
3202101221000102021100202
43012302001303020000
511444111143313004
6242015244304332
721264150610640
oct3066201631000
9671830367322
10213440213504
1182579488571
12354488420a8
131718697222b
14a48b0bc520
15584337eb1e
hex31b2073200

213440213504 has 40 divisors (see below), whose sum is σ = 487386924288. Its totient is φ = 91474375680.

The previous prime is 213440213501. The next prime is 213440213551. The reversal of 213440213504 is 405312044312.

It is not an unprimeable number, because it can be changed into a prime (213440213501) 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 3 ways as a sum of consecutive naturals, for example, 29773232 + ... + 29780399.

Almost surely, 2213440213504 is an apocalyptic number.

It is an amenable number.

213440213504 is an abundant number, since it is smaller than the sum of its proper divisors (273946710784).

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

213440213504 is an frugal number, since it uses more digits than its factorization.

213440213504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59553656 (or 59553640 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 213440213504 its reverse (405312044312), we get a palindrome (618752257816).

The spelling of 213440213504 in words is "two hundred thirteen billion, four hundred forty million, two hundred thirteen thousand, five hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1792 3584 59553631 119107262 238214524 416875417 476429048 833750834 952858096 1667501668 1905716192 3335003336 3811432384 6670006672 7622864768 13340013344 15245729536 26680026688 30491459072 53360053376 106720106752 213440213504