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19985352 = 2333672269
BaseRepresentation
bin100110000111…
…1001111001000
31101121100202020
41030033033020
520104012402
61552204440
7331605222
oct114171710
941540666
1019985352
1110310322
126839720
1341a986a
142923412
151b4b8bc
hex130f3c8

19985352 has 32 divisors (see below), whose sum is σ = 50121600. Its totient is φ = 6640704.

The previous prime is 19985351. The next prime is 19985401. The reversal of 19985352 is 25358991.

It is not an unprimeable number, because it can be changed into a prime (19985351) 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, 7674 + ... + 9942.

It is an arithmetic number, because the mean of its divisors is an integer number (1566300).

Almost surely, 219985352 is an apocalyptic number.

19985352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19985352 is an abundant number, since it is smaller than the sum of its proper divisors (30136248).

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

19985352 is a wasteful number, since it uses less digits than its factorization.

19985352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645 (or 2641 counting only the distinct ones).

The product of its digits is 97200, while the sum is 42.

The square root of 19985352 is about 4470.4979588408. The cubic root of 19985352 is about 271.3754774926.

The spelling of 19985352 in words is "nineteen million, nine hundred eighty-five thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 367 734 1101 1468 2202 2269 2936 4404 4538 6807 8808 9076 13614 18152 27228 54456 832723 1665446 2498169 3330892 4996338 6661784 9992676 19985352