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19968202 = 2191573347
BaseRepresentation
bin100110000101…
…1000011001010
31101120111020001
41030023003022
520102440302
61551553214
7331504222
oct114130312
941514201
1019968202
11102a9451
12682b80a
1341a1b07
14291b082
151b46787
hex130b0ca

19968202 has 16 divisors (see below), whose sum is σ = 31739040. Its totient is φ = 9395568.

The previous prime is 19968191. The next prime is 19968203. The reversal of 19968202 is 20286991.

It is a super-2 number, since 2×199682022 = 797458182225608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19968203) 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, 4293 + ... + 7639.

It is an arithmetic number, because the mean of its divisors is an integer number (1983690).

Almost surely, 219968202 is an apocalyptic number.

19968202 is a deficient number, since it is larger than the sum of its proper divisors (11770838).

19968202 is a wasteful number, since it uses less digits than its factorization.

19968202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 19968202 is about 4468.5794163246. The cubic root of 19968202 is about 271.2978302681.

The spelling of 19968202 in words is "nineteen million, nine hundred sixty-eight thousand, two hundred two".

Divisors: 1 2 19 38 157 314 2983 3347 5966 6694 63593 127186 525479 1050958 9984101 19968202