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213489885632 = 2697107321397
BaseRepresentation
bin1100011011010011111…
…1010010000111000000
3202102001110212212201012
43012310333102013000
511444211402320012
6242024221100052
721265323041432
oct3066477220700
9672043785635
10213489885632
11825a4524a11
12354613b7628
131719404431a
14a49392c652
1558478e2622
hex31b4fd21c0

213489885632 has 56 divisors (see below), whose sum is σ = 432012906864. Its totient is φ = 104656822272.

The previous prime is 213489885589. The next prime is 213489885667. The reversal of 213489885632 is 236588984312.

It is a congruent number.

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, 503558 + ... + 824954.

It is an arithmetic number, because the mean of its divisors is an integer number (7714516194).

Almost surely, 2213489885632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213489885632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216006453432).

213489885632 is an abundant number, since it is smaller than the sum of its proper divisors (218523021232).

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

213489885632 is a wasteful number, since it uses less digits than its factorization.

213489885632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321613 (or 321603 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 59.

The spelling of 213489885632 in words is "two hundred thirteen billion, four hundred eighty-nine million, eight hundred eighty-five thousand, six hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 97 107 194 214 388 428 776 856 1552 1712 3104 3424 6208 6848 10379 20758 41516 83032 166064 321397 332128 642794 664256 1285588 2571176 5142352 10284704 20569408 31175509 34389479 62351018 68778958 124702036 137557916 249404072 275115832 498808144 550231664 997616288 1100463328 1995232576 2200926656 3335779463 6671558926 13343117852 26686235704 53372471408 106744942816 213489885632