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19985202 = 2321110289
BaseRepresentation
bin100110000111…
…1001100110010
31101121100112200
41030033030302
520104011302
61552204030
7331604616
oct114171462
941540480
1019985202
11103101a6
126839616
1341a9783
142923346
151b4b81c
hex130f332

19985202 has 12 divisors (see below), whose sum is σ = 43301310. Its totient is φ = 6661728.

The previous prime is 19985197. The next prime is 19985209. The reversal of 19985202 is 20258991.

It can be written as a sum of positive squares in only one way, i.e., 19900521 + 84681 = 4461^2 + 291^2 .

It is not an unprimeable number, because it can be changed into a prime (19985209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555127 + ... + 555162.

Almost surely, 219985202 is an apocalyptic number.

19985202 is an abundant number, since it is smaller than the sum of its proper divisors (23316108).

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

19985202 is a wasteful number, since it uses less digits than its factorization.

19985202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110297 (or 1110294 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 19985202 is about 4470.4811821548. The cubic root of 19985202 is about 271.3747985550.

The spelling of 19985202 in words is "nineteen million, nine hundred eighty-five thousand, two hundred two".

Divisors: 1 2 3 6 9 18 1110289 2220578 3330867 6661734 9992601 19985202