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208927259472 = 2434352651239
BaseRepresentation
bin1100001010010100001…
…0001111101101010000
3201222021111111110021010
43002211002033231100
511410340334300342
6235551352130520
721044261255361
oct3024502175520
9658244443233
10208927259472
1180672a9a398
12345a9396a40
13169179b1429
14a17d99db68
15567c08329c
hex30a508fb50

208927259472 has 20 divisors (see below), whose sum is σ = 539728753760. Its totient is φ = 69642419808.

The previous prime is 208927259407. The next prime is 208927259483. The reversal of 208927259472 is 274952729802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176325572 + ... + 2176325667.

It is an arithmetic number, because the mean of its divisors is an integer number (26986437688).

Almost surely, 2208927259472 is an apocalyptic number.

It is an amenable number.

208927259472 is an abundant number, since it is smaller than the sum of its proper divisors (330801494288).

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

208927259472 is a wasteful number, since it uses less digits than its factorization.

208927259472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352651250 (or 4352651244 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 208927259472 in words is "two hundred eight billion, nine hundred twenty-seven million, two hundred fifty-nine thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 4352651239 8705302478 13057953717 17410604956 26115907434 34821209912 52231814868 69642419824 104463629736 208927259472